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32cf6a3a02362843e5919199e50646d0dab107ce
subsection
498
1,121
The double coset formula
Since \psi ^M_G(\operatorname{tr}_{H_j}^G(y)) and |W_G H_j|\cdot x both belong to I_j and agree at the component of H_j, we can thus conclude that\psi ^M_G(\operatorname{tr}_{H_j}^G(y)) - |W_G H_j|\cdot x \ \in \ I_{j-1} \ .This proves (REF ) and finishes the proof that the cokernel of \psi ^M_G is annihilated by the n...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1090/memo/0543", "end": 1787, "openalex_id": "https://openalex.org/W2049930703", "raw": "J. P. C. Greenlees, J. P. May, Generalized Tate cohomology. Mem. Amer. Math. Soc. 113 (1995), no. 543, viii+178 pp.", "source_ref_id": "5736f7...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.024978792294859886, 0.014747710898518562, -0.011077949777245522, -0.012855609878897667, 0.010513370856642723, -0.06323281675577164, 0.016388041898608208, -0.018173329532146454, 0.02403274178504944, 0.04714994877576828, -0.05056793987751007, -0.0395205095410347, 0.017639270052313805, 0.0...
593f70187500f44388baaaa939c8e1f4bbc575d5
subsection
499
1,121
The double coset formula
One could deduce part (ii) of the following theorem from the results in by using the action of the Burnside ring A(H) on the value M(H) of any G-Mackey functor M, and showing that after inverting the group order, the functor \tau _H:G\operatorname{-{\mathcal {M}}ack}\longrightarrow W_G H \operatorname{-mod} becomes is...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1090/memo/0543", "end": 407, "openalex_id": "https://openalex.org/W2049930703", "raw": "J. P. C. Greenlees, J. P. May, Generalized Tate cohomology. Mem. Amer. Math. Soc. 113 (1995), no. 543, viii+178 pp.", "source_ref_id": "5736f74...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01349275279790163, 0.022424358874559402, 0.02938048727810383, 0.0029689394868910313, 0.0003825584426522255, -0.06208649277687073, 0.010701148770749569, 0.014613970182836056, 0.02095991186797619, 0.05439814180135727, -0.04222491756081581, -0.024880360811948776, 0.03166868910193443, 0.006...
968e47f4aed9039a2bfc5e530527d3ed6609838d
subsection
500
1,121
The double coset formula
The conjugation map \gamma _\star :(\rho _H N)(K^\gamma )\longrightarrow (\rho _H N)(K), for \gamma \in G, is precomposition with the W_G H-map(G/K)^H \ \longrightarrow \ (G/K^\gamma )^H \ , \quad g\cdot K \ \longmapsto \ g \gamma \cdot K^\gamma \ .For L\le K, the restriction map \operatorname{res}^K_L:(\rho _H N)(K)\l...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.03255912661552429, 0.024259144440293312, -0.039424922317266464, -0.0020349454134702682, 0.009917260147631168, -0.040737051516771317, 0.030362073332071304, 0.025052525103092194, -0.019559888169169426, 0.039424922317266464, -0.01473857369273901, -0.009551084600389004, 0.009772315621376038, ...
adea9a3b147c08783e4006d999c508cb93817d41
subsection
501
1,121
The double coset formula
Hence for every W_G H-map f:(G/L)^H\longrightarrow N all g J\in (G/J)^H we obtain the relation(\operatorname{res}^K_J(\operatorname{tr}_L^K (f)))(g J)\ &= \ \sum _{\gamma L\in (G/L)^H\ :\ \gamma K= g K} f(\gamma L)\\ &= \ \sum _{k\in R} \ \sum _{ j\in S_k}\, f(j k L)\\ &= \ \sum _{k\in R} \ \sum _{ j\in S_k}\, k_\star ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01980704441666603, -0.008507262915372849, -0.029222259297966957, 0.0003071007668040693, 0.0047495705075562, -0.00558885233476758, 0.004478711634874344, -0.0003144921502098441, -0.01518336683511734, 0.02745213732123375, -0.04001083970069885, -0.033082954585552216, 0.037721890956163406, 0...
8b098fbbd8fb47b29a4943a7bafb247039f1b610
subsection
502
1,121
The double coset formula
For a subgroup K of G we define\eta _H^M(K)\ : \ M(K)\ \longrightarrow \ \operatorname{map}^{W_G H}((G/K)^H,\tau _H M) \ = \ \rho _H(\tau _H M)(K)by\eta _H^M(K)(x)(g K)\ = \ [ g_\star ( \operatorname{res}^K_{H^g}(x) ) ] \ .We show that these additive maps indeed define a morphism of G-Mackey functors. For L\le K\le G, ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ 0.013022505678236485, 0.009314867667853832, -0.022291600704193115, -0.007674657739698887, -0.020369121804833412, -0.05837622284889221, -0.012732608243823051, -0.0058971275575459, 0.029096564278006554, 0.017546433955430984, -0.020491182804107666, -0.014906840398907661, 0.01306827925145626, ...
769316a5911ff122945f64edaaeef07f580d508a
subsection
503
1,121
The double coset formula
Similarly, for \gamma \in G and x\in M(K^\gamma ) we have\gamma _\star (\eta _H^M(K^\gamma )(x))(g\cdot K)\ &= \ \eta _H^M(K^\gamma )(x)(g\gamma \cdot K^\gamma )\ = \ [ (g\gamma )_\star (\operatorname{res}^{K^\gamma }_{H^{g\gamma }}(x)) ] \\ &= \ [ g_\star (\operatorname{res}^K_{H^g}(\gamma _\star (x))) ] \ = \ \eta _H...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.048612695187330246, 0.027113860473036766, -0.042570438235998154, -0.00841490924358368, -0.004421069752424955, -0.016402587294578552, 0.025847427546977997, -0.00021611840929836035, -0.008010566234588623, -0.008979463018476963, -0.015960099175572395, 0.002542401198297739, 0.0229788813740015...
d9eb7bc726fa5b318d5d0afa3a4673838165d9c4
subsection
504
1,121
The double coset formula
So for all x\in M(L) we obtain the relation\operatorname{tr}^K_L(\eta _H^M(L)(x))(g K)\ &= \ \sum \, \eta _H^M(L)(x)(\gamma L)\ = \ \sum \, [ \gamma _\star (\operatorname{res}^L_{H^{\gamma }}(x)) ] \\ _(\ref {eq:double_coset_rho_H}) &= \ [ g_\star (\operatorname{res}^K_{H^g}(\operatorname{tr}^K_L(x)))] \ = \ \eta _H^M(...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.0063544525764882565, 0.023510711267590523, -0.028957383707165718, -0.020261015743017197, -0.024532916024327278, -0.032619014382362366, 0.01679772324860096, -0.004519823472946882, 0.005275034811347723, 0.0037588912528008223, -0.03252747282385826, 0.0025211842730641365, 0.019803311675786972...
6f2505a9523f9fbe36ec5be6e55ed2638440fb41
subsection
505
1,121
The double coset formula
Since (\tau _H,\rho _H) is an adjoint pair for every subgroup H of G, a right adjoint to the product functor \tau is given by\rho \ : \ {\prod }_{(H)}\, W_G H\operatorname{-mod}\longrightarrow G\operatorname{-{\mathcal {M}}ack}\ , \quad \rho ( (N_H)_{(H)})\ = \ {\prod }_{(H)} \, \rho _H(N_H)\ ,the product of the G-Mack...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.02047779969871044, 0.006618662737309933, -0.002296504331752658, -0.00792713649570942, -0.01878403127193451, -0.02659672498703003, -0.024338368326425552, -0.0062486277893185616, 0.01236755307763815, 0.03530970588326454, -0.03152543306350708, -0.05142338573932648, 0.0013008437817916274, 0...
8de54c7a998809512972acee07e88a1d2cd5cb13
subsection
506
1,121
The double coset formula
So taking W_G H-equivariant maps into \tau _H M provides an isomorphism of abelian groups\rho _H(\tau _H M)(K)\ = \ \operatorname{map}^{W_G H}( (G/K)^H, \tau _H M) \ &\longrightarrow \ {\prod }_{L\in R_{H,K}}\, (\tau _H M)^{W_{^{g_L} K} H} \\ f \qquad &\longmapsto \quad ( f(g_L K) )_{L} \ .Because H^{g_L}=L, the map (g...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.004902278073132038, 0.032900579273700714, -0.01876981183886528, -0.021394534036517143, -0.01573307067155838, -0.019548071548342705, 0.02147083356976509, 0.01077356655150652, 0.01690809056162834, 0.03872990608215332, -0.02636929601430893, 0.005218923091888428, 0.03418242186307907, 0.0295...
360c63dd842a9ed310be35ab989554edc095ac55
subsection
507
1,121
The double coset formula
Since the functor \tau is additive, it commutes with finite products, so it suffices to show that for every individual subgroup H of G and every Q-local W_G H-module N, there is an Q-local G-Mackey functor M such that \tau M is isomorphic to N. We let e:\tau (\rho _H N)\longrightarrow \tau (\rho _H N) be the idempotent...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.021218793466687202, 0.0085195517167449, 0.020059462636709213, -0.0042559620924293995, 0.005327580031007528, -0.05869871750473976, 0.029639191925525665, 0.010754313319921494, 0.020089972764253616, 0.05686819553375244, -0.010533125139772892, -0.015650957822799683, 0.0005014865892007947, 0...
c07a9c2834825b24cd9b37017080f4e989f186ab
subsection
508
1,121
The double coset formula
The following proposition is well known, and closely related statements appear in Appendix A of ; however, I am not aware of a reference for the following statement in this form.Proposition 4.23 For every finite group G, every orthogonal G-spectrum X and every integer k the reduced geometric fixed point map\bar{\Phi }...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.02904415875673294, 0.02803737483918667, -0.02878483571112156, 0.024086516350507736, -0.006803411059081554, -0.05930865928530693, 0.05485440790653229, -0.005403830204159021, 0.03627469018101692, 0.014918690547347069, -0.004561031237244606, -0.024345839396119118, 0.015635641291737556, 0.0...
7fef7494727365d631f9518cbf38485da5c3bbdd
subsection
509
1,121
The double coset formula
Equivariant homotopy groups commute with wedges, so we can identify the homotopy group Mackey functor of X\wedge (A/B) as{\underline{\pi }}_k(X\wedge A/B)\ \cong \ {\bigoplus }_{i\in I}\ {\underline{\pi }}_k(X\wedge S^n\wedge (G/H_i)_+)\ .Since A has no G-fixed points, the groups H_i are all proper subgroups of G, so t...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.023406153544783592, -0.030562272295355797, -0.041471920907497406, 0.027831045910716057, 0.01924065127968788, -0.022322818636894226, 0.026930809020996094, -0.0016068842960521579, 0.019408492371439934, 0.018004734069108963, -0.005988862831145525, -0.04186863452196121, 0.0408005565404892, ...
ecd3ab7fcfaa495c7b43cf8994cefe6d6c8c7e04
subsection
510
1,121
The double coset formula
The inclusion i:S^0\longrightarrow \tilde{E}{\mathcal {P}}_G gives rise to a commutative square:\begin{aligned} @C=15mm{ \tau _G( {\underline{\pi }}_k(X))[r]^-{\tau _G({\underline{\pi }}_k(X\wedge i))}[d]_{\bar{\Phi }} & \tau _G( {\underline{\pi }}_k(X\wedge \tilde{E}{\mathcal {P}}_G)) [d]^{\bar{\Phi }} \\ \Phi ^G_k(X)...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.06287136673927307, -0.009651975706219673, -0.033205848187208176, 0.020890995860099792, 0.03775333985686302, -0.01710650511085987, 0.03729553893208504, 0.0309931430965662, 0.0412936694920063, 0.03601369634270668, -0.02032637409865856, -0.015336341224610806, 0.004867952782660723, 0.031115...
48cba2cfdbe3b797eecd9df87071c388657fa380
subsection
511
1,121
The double coset formula
Under this identification, the map \bar{\psi }^M_G becomes the product of the maps\pi _k^G(X) \ \xrightarrow{}\ \pi _k^H(X)\ \xrightarrow{} \ \Phi _k^H(X)\ .So Propositions REF and REF together prove:Corollary 4.25 For every finite group G, every orthogonal G-spectrum X and every integer k the map(\Phi ^H\circ \opera...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ 0.003267943160608411, -0.0023865713737905025, -0.00006998988101258874, 0.007360025774687529, -0.009279203601181507, -0.06138315051794052, 0.011324291117489338, -0.03204987943172455, 0.038490377366542816, 0.04178693890571594, -0.03574324771761894, 0.0008718330063857138, 0.043557312339544296, ...
680419b3d3ecd64dabeda9288bc66c0060c8ec37
subsection
512
1,121
Products
In this section we recall the smash product of orthogonal spectra and orthogonal G-spectra and study its formal and homotopical properties. Like the box product of orthogonal spaces, the smash product of orthogonal spectra is a special case of Day's convolution product on categories of enriched functors, compare Append...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.037564244121313095, 0.01702749729156494, -0.021299628540873528, 0.002092200331389904, 0.025388669222593307, -0.016096781939268112, 0.009810646064579487, 0.013281753286719322, 0.039425674825906754, 0.03048471361398697, -0.023786621168255806, 0.017195330932736397, 0.007933959364891052, 0....
7a2ba6c4dc4323d40050b8553acb2b42c8e92ba3
subsection
513
1,121
Products
A smash product of two orthogonal spectra is now a universal example of a bimorphism from (X,Y).Definition 5.1 A smash productsmash product\wedge - smash product of orthogonal spectra of two orthogonal spectra X and Y is a pair (X\wedge Y,i) consisting of an orthogonal spectrum X\wedge Y and a universal bimorphism i:(X...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.030374575406312943, 0.010892740450799465, -0.048025697469711304, -0.02073282189667225, 0.025950351729989052, -0.020702309906482697, -0.02448578178882599, 0.020259886980056763, 0.04244202375411987, 0.013516762293875217, -0.022868653759360313, 0.006327400915324688, 0.006663031410425901, -...
7f84ffdc7fbadbfb095b64d7500d08ca5ba1bd4e
subsection
514
1,121
Products
In the case at hand this specializes to a preferred isomorphism{\mathbf {O}}(V,-)\wedge {\mathbf {O}}(W,-)\ \cong \ {\mathbf {O}}(V\oplus W,-)specified, via the universal property (REF ), by the bimorphism with (U,U^{\prime })-component\oplus \ : \ {\mathbf {O}}(V,U)\wedge {\mathbf {O}}(W,U^{\prime })\ \longrightarrow ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.019311822950839996, 0.013347429223358631, -0.04451176896691322, 0.004450414329767227, 0.021721987053751945, -0.00942709855735302, 0.03932534158229828, -0.0034646112471818924, 0.02564231865108013, 0.026313502341508865, 0.0013576241908594966, 0.02384232170879841, 0.016749117523431778, 0.0...
d9dbf2bbcbca24bddd25a95ec99c17ff52210988
subsection
515
1,121
Products
Since an orthogonal G-spectrum is the same data as an orthogonal spectrum with continuous G-action, and since skeleta are functorial, the skeleta of an orthogonal G-spectrum automatically come as orthogonal G-spectra.Construction 5.6 (Skeleton filtration of orthogonal spectra) As in the unstable situation in Section ,...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.007810243871062994, -0.005768973380327225, -0.047403257340192795, 0.016192806884646416, 0.029424816370010376, -0.03668944910168648, -0.03047788329422474, -0.003161107422783971, 0.04773901775479317, 0.010767224244773388, 0.0008684938075020909, -0.004834186285734177, -0.0011007598368451, ...
7da1e03f49ce53248dac109c1e08bb9cc03fdc07
subsection
516
1,121
Products
As we remarked earlier, the skeleta of (the underlying orthogonal spectrum of) an orthogonal G-spectrum inherit a continuous G-action by functoriality. In other words, the skeleta and the various morphisms between them lift to endofunctors and natural transformations on the category of orthogonal G-spectra. If X is an ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1257, "openalex_id": "https://openalex.org/W2183692372", "raw": "M. Stolz, Equivariant structure on smash powers of commutative ring spectra. PhD thesis, University of Bergen, 2011.", "source_ref_id": "26ca4953153b3ac27dc6db...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.030692672356963158, 0.008111962117254734, -0.04688607156276703, 0.000001609705577720888, 0.02348882332444191, -0.055036190897226334, -0.002081408863887191, 0.014445855282247066, 0.012835673056542873, 0.011324696242809296, -0.0070970128290355206, -0.02562555857002735, -0.010141860693693161...
c6c6b7ca8fb28c6475b81b25ce4fe8ff1e0741cd
subsection
517
1,121
Products
Indeed, if H is a closed subgroup of G and Y an orthogonal H-spectrum, thenL_m (G\ltimes _H Y) \ &\cong \ (G\times O(m))\ltimes _{H\times O(m)} (L_m Y) \text{\quad and}\\ (G\ltimes _H Y)({\mathbb {R}}^m)\ &\cong \ (G\times O(m))\ltimes _{H\times O(m)} Y({\mathbb {R}}^m)\ .Since induction from H\times O(m) to G\times O(...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1839, "openalex_id": "https://openalex.org/W2183692372", "raw": "M. Stolz, Equivariant structure on smash powers of commutative ring spectra. PhD thesis, University of Bergen, 2011.", "source_ref_id": "26ca4953153b3ac27dc6db...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.02660767361521721, -0.007555877789855003, -0.036951713263988495, 0.008864139206707478, 0.028957204893231392, -0.026455108076334, -0.013372492045164108, -0.013471661135554314, -0.00048392327153123915, -0.014059043489396572, -0.023922495543956757, 0.0022141276858747005, 0.0255702193826437, ...
952b4b775e1f97da20a8709812c08ef4b7097750
subsection
518
1,121
Products
The theorem is stronger than the earlier result of Mandell and May because the class of G-flat of orthogonal G-spectra is strictly larger than the cofibrant G-spectra in the sense of .Since Stolz' thesis is not published, the notation and level of generality in is different from ours, and the characterization of flat...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 185, "openalex_id": "https://openalex.org/W2075488415", "raw": "M. A. Mandell, J. P. May, Equivariant orthogonal spectra and S-modules. Mem. Amer. Math. Soc. 159 (2002), no. 755, x+108 pp.", "source_ref_id": "1fe5cf0f78b8a5a...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.009300421923398972, 0.024078860878944397, -0.03335639461874962, 0.0063477857038378716, 0.03775101527571678, -0.050416067242622375, 0.011711359024047852, 0.01256586890667677, 0.004798986949026585, 0.01915017142891884, 0.004955392796546221, -0.045899372547864914, -0.003933032974600792, 0....
2ff20c5c0abf5847da27edba567460627b9ccf07
subsection
519
1,121
Products
Since the K-action on B is free, the stabilizer group \Gamma is the graph of a continuous homomorphism \alpha :H\longrightarrow K from some closed subgroup H of G (namely the projection of \Gamma to G). So we can rewrite( (G\times K)/\Gamma )_+ \triangleright _{K,W} C \ \cong \ G\ltimes _H ( \operatorname{sh}^{\alpha ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.03850265592336655, 0.0424993634223938, -0.021295445039868355, -0.0009162304340861738, 0.020837808027863503, -0.07895790040493011, 0.0026771854609251022, 0.029182083904743195, 0.020044567063450813, 0.04307904094457626, -0.014148658141493797, -0.030509235337376595, 0.04039422795176506, 0....
143808b8d59a665823f180b56b74d80ab3368d28
subsection
520
1,121
Products
Since the input data is stable under passage to closed subgroups of G (just restrict \alpha to such a subgroup), it is no loss of generality to assume H=G.We can represent every class of \pi _k^G(C\wedge \alpha ^*({\mathbf {O}}({\mathbb {R}}^m,-)/K )) by a based G-mapf \ : \ S^{V\oplus {\mathbb {R}}^{m+k}}\ \longrighta...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.04418547451496124, -0.0006598832551389933, -0.044032901525497437, 0.018964968621730804, 0.01563885062932968, -0.028577139601111412, 0.024137232452630997, -0.003240293590351939, 0.010947195813059807, 0.0175307709723711, -0.015745652839541435, -0.030545346438884735, 0.03362734615802765, 0...
da3f23d11ab4842a042b1620b62a027f434712c3
subsection
521
1,121
Products
This space also has a commuting free right action of O(V) by right translation. Since O(V\oplus {\mathbb {R}}^m)/K is a smooth manifold and the (G\times O(V))-action is smooth, Illman's theorem provides a finite (G\times O(V))-CW-structure on O(V\oplus {\mathbb {R}}^m)/K; so O(V\oplus {\mathbb {R}}^m)/K_+ is cofibrant...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/bf01456063", "end": 382, "openalex_id": "https://openalex.org/W2156908593", "raw": "S. Illman, The equivariant triangulation theorem for actions of compact Lie groups. Math. Ann. 262 (1983), 487–501.", "source_ref_id": "1095cd...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.039060078561306, 0.028730519115924835, -0.04452238604426384, -0.01908756233751774, 0.029401864856481552, -0.023619141429662704, -0.00027249555569142103, 0.024732964113354683, 0.04333227500319481, 0.017668582499027252, -0.012686897069215775, -0.02070489339530468, 0.027647212147712708, 0....
59d2b358eb54a5e8937562a1320e49e214e58e64
subsection
522
1,121
Products
Since the stabilization represents the same element as f, this shows that \pi _k^G(C\wedge \alpha ^*({\mathbf {O}}({\mathbb {R}}^m,-)/K))=0.Step 3: We let \Gamma be a closed subgroup of G\times O(m). We claim that smashing with the orthogonal G-spectrumG_m\left( (G\times O(m))/\Gamma _+\right) \ = \ {\mathbf {O}}({\mat...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.029955502599477768, 0.02029588259756565, -0.03793651610612869, -0.020494263619184494, 0.019593920558691025, -0.05289137735962868, -0.00602390943095088, 0.018510455265641212, 0.013680646196007729, 0.03589166700839996, -0.01855623535811901, -0.028933078050613403, 0.04303337633609772, 0.01...
3cfecb0825d43e5446c67d7217ae2f51ad5d7f76
subsection
523
1,121
Products
We claim that smashing with the orthogonal G-spectrum G_m A preserves G-stably contractible orthogonal G-spectra. A cofibrant based (G\times O(m))-space is equivariantly homotopy equivalent to a based (G\times O(m))-CW-complex, so it is no loss of generality to assume an equivariant CW-structure with skeleton filtratio...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.031334567815065384, 0.024805260822176933, -0.03398900479078293, -0.011113550513982773, 0.03984707593917847, -0.05507194995880127, -0.009374435991048813, -0.0029175931122153997, 0.0022787735797464848, 0.014057840220630169, -0.0016904877265915275, -0.03139558807015419, 0.01671990565955639, ...
941a82412b33530574698e35b7981f4dd99df034
subsection
524
1,121
Products
X) is G-stably contractible, where \operatorname{sk}^m \! X is the m-skeleton in the sense of Construction REF . The induction starts with m=-1, where there is nothing to show. For m\ge 0 the morphism j_m:\operatorname{sk}^{m-1}\! X\longrightarrow \operatorname{sk}^m\! X is an h-cofibration of orthogonal G-spectra, hen...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01759050227701664, -0.002559242770075798, -0.07060611248016357, 0.027140939608216286, 0.031092319637537003, -0.02070278488099575, 0.013593354262411594, 0.026393381878733635, 0.01272374577820301, 0.002835762919858098, -0.013578098267316818, -0.03682868555188179, 0.008757110685110092, -0....
bf8ba26e54bf28c6bbdfeabf3ddd9b3a65bd3e29
subsection
525
1,121
Products
We letf\ :\ S^{U\oplus {\mathbb {R}}^{m+k}}\ \longrightarrow \ X(U\oplus {\mathbb {R}}^m) \text{\quad and\quad } g\ :\ S^{V\oplus {\mathbb {R}}^{n+l}}\ \longrightarrow \ Y(V\oplus {\mathbb {R}}^n)represent classes in \pi ^G_k(X) respectively \pi ^G_l(Y), for suitable G-representations U and V. The class [f]\times [g] i...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.04886506497859955, -0.0038876875769346952, -0.034550439566373825, 0.022372325882315636, 0.02840033918619156, -0.03226131945848465, 0.0202663354575634, 0.014375668950378895, 0.016359571367502213, 0.020006902515888214, -0.01252911239862442, 0.003345929319038987, -0.009454062208533287, 0.0...
5d6b6faee5de862cbaf33652302e9e03236ab929
subsection
526
1,121
Products
(Restriction) For all x\in \pi _k^G ( X ) and y\in \pi _l^G( Y ) and all continuous homomorphisms \alpha :K\longrightarrow G the relation \alpha ^*(x)\times \alpha ^*(y)\ = \ \alpha ^*(x\times y) holds in \pi _{k+l}^K(\alpha ^*(X\wedge Y)). (Transfer) Let H be a closed subgroup of G. For all x\in \pi _k^G(X) and z\i...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.05996986851096153, 0.02250777557492256, -0.01847926527261734, 0.04248247295618057, -0.01134544424712658, -0.04510710760951042, 0.03640918806195259, 0.011681153438985348, 0.04409997910261154, 0.009178594686090946, -0.03836240619421005, -0.02096656523644924, 0.010513801127672195, 0.075137...
0e8136e1de6f4455b5b51ccc24fc124f8fbccda9
subsection
527
1,121
Products
Indeed, iff \ : \ S^{U\oplus {\mathbb {R}}^{m+k}}\ \longrightarrow \ X(U\oplus {\mathbb {R}}^m) \text{\quad and\quad } g \ : \ S^{V\oplus {\mathbb {R}}^{n+l}}\ \longrightarrow \ Y(V\oplus {\mathbb {R}}^n)represent classes in \pi _k^G(X) respectively \pi _l^G(Y), then the left and right vertical composites in the diagra...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.028086891397833824, -0.023494737222790718, -0.028224198147654533, -0.02607305534183979, 0.005145194940268993, -0.009054627269506454, -0.0004708005872089416, 0.03179417550563812, -0.0029749830719083548, 0.008993602357804775, 0.009382638148963451, 0.015546193346381187, 0.020184114575386047,...
62a5eda3e00c0200669b6b958a616368af26353e
subsection
528
1,121
Products
Since the two composites differ by conjugation by a G-equivariant linear isometry, they represent the same class by Proposition REF  (ii).(vi) The following diagram of abelian groups commutes by naturality of the pairing (REF ), and because restriction from G to H is multiplicative:\hspace*{-19.91684pt}@C=6mm@R=6mm{ \p...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.06585107743740082, -0.0008477410883642733, -0.006625540088862181, -0.018308918923139572, 0.001138585852459073, -0.01603556051850319, 0.018598809838294983, 0.02177235670387745, 0.022718315944075584, 0.032528843730688095, -0.05041055753827095, -0.008109325543045998, 0.019483741372823715, ...
980c82af8855cf0765a4ed5edfbf47722a74604a
subsection
529
1,121
Products
Since the external transfer is inverse to the Wirthmüller isomorphism (up to the effect of the involution S^{-\operatorname{Id}}:S^L\longrightarrow S^L), we can read the diagram backwards and conclude that the upper part of the following diagram commutes:@C=10mm@R=6mm{ \pi _k^G(X) \times \pi _l^H(Y\wedge S^L) [r]^-{\op...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1912, "openalex_id": "", "raw": "S. Mac Lane, Categories for the working mathematician. Second edition. Graduate Texts in Mathematics, 5. Springer-Verlag, New York, 1998. xii+314 pp.", "source_ref_id": "05a93e42555651e93a155...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.08667232096195221, 0.03555396571755409, -0.02450629509985447, 0.022110598161816597, 0.0173344649374485, -0.027634432539343834, -0.01273381244391203, 0.013824845664203167, 0.032776787877082825, 0.027359766885638237, -0.03994861617684364, 0.012482034973800182, -0.010193153284490108, 0.037...
012b43e5e8516fbc9cad9493f6b6c18ad096c95a
subsection
530
1,121
Products
Via the universal property of the smash product the data contained in the multiplication morphism can be made more explicit: \mu :R\wedge R\longrightarrow R corresponds to a collection of based continuous maps \mu _{V,W}:R(V)\wedge R(W)\longrightarrow R(V\oplus W) that together form a bimorphism. The associativity and ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1368, "openalex_id": "", "raw": "J. P. May, E_{\\infty } ring spaces and E_{\\infty } ring spectra. With contributions by F. Quinn, N. Ray, and J. Tornehave. Lecture Notes in Mathematics, Vol. 77. Springer-Verlag, Berlin-New York,...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.06340816617012024, 0.017896480858325958, -0.028622165322303772, 0.006949571426957846, 0.029781699180603027, -0.05275876820087433, -0.007918392308056355, 0.03065134771168232, 0.018094822764396667, 0.03518268093466759, -0.031398940831422806, -0.005057701375335455, -0.004584733862429857, 0...
3d44026a7ed084cc14d41ea8f32778f3125f5644
subsection
531
1,121
Products
The multiplicative unit is the class of the unit map S^0\longrightarrow R(0). If the multiplication of R is commutative, then the relation x\cdot y\ = \ (-1)^{kl}\cdot y \cdot x holds for all classes x\in \pi _k^G(R) and y\in \pi ^G_l(R). (Restriction) The restriction maps \operatorname{res}^G_H:\pi _*^G(R)\longrig...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1255, "openalex_id": "", "raw": "J. P. C. Greenlees, J. P. May, Localization and completion theorems for M{\\rm U}-module spectra. Ann. of Math. (2) 146 (1997), 509–544.", "source_ref_id": "e5b776bc28c1d76efd5f4dda378412379c...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.07440914958715439, 0.011742789298295975, -0.03754030168056488, 0.04019559174776077, 0.021578043699264526, -0.06500881910324097, 0.023394016548991203, 0.01457357220351696, 0.02000623382627964, 0.004417852498590946, -0.047306884080171585, -0.020601384341716766, 0.0031073756981641054, 0.00...
c164cff6fec57d65cf5791be208d00168bff7adb
subsection
532
1,121
Global stable homotopy theory
In this chapter we embark on the investigation of global stable homotopy theory. In Section we specialize the equivariant theory of the previous chapter to global stable homotopy types, which we model by orthogonal spectra (with no additional action of any groups). Section introduces the category of global functors, th...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.05131997540593147, -0.008169395849108696, -0.03145713359117508, 0.012913900427520275, 0.00668959878385067, -0.05601871386170387, -0.002736480673775077, 0.02582780085504055, 0.04048847034573555, 0.01286050584167242, -0.030816394835710526, 0.01771179959177971, -0.01655237004160881, 0.0009...
030784488863b48fafa3a64c19b2261ca2e6c137
subsection
533
1,121
Orthogonal spectra as global homotopy types
In this section we specialize the equivariant stable homotopy theory of Chapter to global stable homotopy types, which we model by orthogonal spectra (with no additional group action). Given an orthogonal spectrum X and a compact Lie group G, we obtain an orthogonal G-spectrum by letting G act trivially on the values o...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.04227130115032196, 0.0035518575459718704, -0.040592655539512634, 0.02756027691066265, 0.025851113721728325, -0.08478676527738571, 0.028445379808545113, 0.03287089616060257, 0.030642878264188766, 0.02069309912621975, -0.04025692865252495, -0.01587081328034401, 0.0008445676066912711, -0.0...
ec65d21db84ca9646b9f240e264e219573a11687
subsection
534
1,121
Orthogonal spectra as global homotopy types
If Y=X_G arises from an orthogonal spectrum, then this G-action is trivial.Remark 1.2 (Global homotopy types are split G-spectra) Obviously, only very special orthogonal G-spectra Y are part of a `global family', i.e., arise as X_G for an orthogonal spectrum X. However, it is not a priori clear what the homotopical si...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.02707573026418686, -0.007070367224514484, -0.01987181417644024, 0.016544584184885025, 0.03803422674536705, -0.07960935682058334, -0.006746038794517517, 0.00943224411457777, 0.05442618578672409, 0.018849225714802742, -0.044291865080595016, -0.03299759328365326, 0.0051625510677695274, -0....
79f16747c4b97a387d80e248167081b767d9bb2e
subsection
535
1,121
Orthogonal spectra as global homotopy types
In later sections we will also consider a relative notion of global equivalence, the `{\mathcal {F}}-equivalences', based on a global family {\mathcal {F}}global family of compact Lie groups. There we require that the induced map \pi _k^G (f): \pi _k^G (X)\longrightarrow \pi _k^G(Y) is an isomorphism for all integers k...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.04367998242378235, 0.018283933401107788, -0.035224806517362595, 0.022847287356853485, 0.010759743861854076, -0.05918622389435768, 0.01916913315653801, -0.006967124994844198, 0.023778270930051804, 0.02733432874083519, -0.03604895994067192, -0.0007235165103338659, 0.022374162450432777, 0....
c97a7c5a10de65f51f3d2b95d6d5f8822974bb68
subsection
536
1,121
Orthogonal spectra as global homotopy types
The cobase change of an h-cofibration that is also a global equivalence is another global equivalence by Corollary REF  (i). Every h-cofibration of orthogonal spectra is in particular levelwise a closed embedding. So the class of h-cofibrations that are also global equivalences is closed under sequential composition by...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.038277845829725266, 0.00885213352739811, -0.028784697875380516, 0.011576454155147076, 0.009050543420016766, -0.05317385122179985, 0.03009725548326969, -0.010584404692053795, 0.04783204570412636, -0.00005115255044074729, -0.02725846692919731, -0.02116880938410759, 0.037942077964544296, 0...
bc97441dc22616bb726e4fed69da96fcb8a7b848
subsection
537
1,121
Orthogonal spectra as global homotopy types
The construction is clearly functorial in the orthogonal spectrum X; moreover, \Omega ^\bullet has a left adjoint `unreduced suspension spectrum' functor \Sigma ^\infty _+ that we discuss in Construction REF below.If G acts on V by linear isometries, then the G-fixed subspace of (\Omega ^\bullet X)(V) is the space of G...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.06866874545812607, 0.008759080432355404, -0.004036196507513523, 0.02411036007106304, 0.033052556216716766, -0.061191484332084656, 0.021897699683904648, 0.03534151613712311, 0.06579992175102234, -0.0012760942336171865, -0.031465545296669006, -0.013413295149803162, 0.019150950014591217, 0...
25ef63a9700d5b9c048d1410a5d8acb633cab84c
subsection
538
1,121
Orthogonal spectra as global homotopy types
Given an orthogonal space Y, we denote by \operatorname{tel}_i Y(V_i) the mapping telescope of the sequence of G-spacesY(V_1) \ \longrightarrow \ Y(V_2) \ \longrightarrow \ \cdots \ \longrightarrow \ Y(V_i) \ \longrightarrow \ \cdots \ ;the maps in the sequence are induced by the inclusions, so they are G-equivariant, ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.07190226763486862, 0.008980153128504753, -0.018616460263729095, 0.024720218032598495, 0.05233972147107124, -0.022156639024615288, -0.015396728180348873, -0.0054094549268484116, 0.04141399636864662, 0.035096604377031326, -0.026688680052757263, -0.021759895607829094, 0.005382751114666462, ...
f8357c8b2fa7a5e88fee01afcaf497319f3b9121
subsection
539
1,121
Orthogonal spectra as global homotopy types
For every compact based G-space A the canonical map\operatorname{colim}_{n\ge 1}\, [A, S^{V_j}\wedge \operatorname{tel}_{[0,n]} Y(V_i)_+ ]^G \ \longrightarrow \ [A, S^{V_j}\wedge \operatorname{tel}_i Y(V_i)_+ ]^Gis thus bijective. Indeed, every continuous map from the compact spaces A and A\wedge [0,1]_+ to S^{V_j}\wed...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.06648489832878113, 0.00863876286894083, -0.0173843652009964, -0.026572590693831444, 0.03757709264755249, -0.049604203552007675, -0.010966344736516476, -0.013568657450377941, 0.006368416827172041, 0.03602028265595436, -0.0017208843491971493, -0.025809448212385178, -0.026847321540117264, ...
7a44dc02cc0a481e323908395a7dcdcd10145334
subsection
540
1,121
Orthogonal spectra as global homotopy types
For negative values of k, the argument is similar: we insert {\mathbb {R}}^{-k} into the second variable of the sets of equivariant homotopy classes.Corollary 1.9 The unreduced suspension spectrum functor \Sigma ^\infty _+ takes global equivalences of orthogonal spaces to global equivalences of orthogonal spectra.Let ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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ba3324a2cfcd0cdfcab3209b13e6f3719490b4ad
subsection
541
1,121
Orthogonal spectra as global homotopy types
Then the suspension spectrum \Sigma ^\infty _+ Y is globally connective. Moreover, for every compact Lie group K the equivariant homotopy group \pi _0^K(\Sigma ^\infty _+ Y) is a free abelian group with a basis given by the elements\operatorname{tr}_L^K(\sigma ^L(x)) \ ,where L runs through all conjugacy classes of clo...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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03e8b87e8f4a6e9fad9e37b6705286ade5af4ca1
subsection
542
1,121
Orthogonal spectra as global homotopy types
The stable tautological classstable tautological classtautological class!stable|seestable tautological classe_{G,V} - stable tautological class in \pi _0^G(\Sigma ^\infty _+ {\mathbf {L}}_{G,V}) ise_{G,V}\ = \ \sigma ^G(u_{G,V})\ \in \ \pi _0^G(\Sigma ^\infty _+ {\mathbf {L}}_{G,V}) \ .Explicitly, e_{G,V} is the homoto...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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25e69786d6a5841b61a463b86fe4ff410e18416d
subsection
543
1,121
Orthogonal spectra as global homotopy types
Proposition REF thus says that \pi _0^K(\Sigma ^\infty _+ {\mathbf {L}}_{G,V}) is a free abelian group with a basis given by the elements\operatorname{tr}_L^K(\sigma ^L(\alpha ^*(u_{G,V})))\ = \ \operatorname{tr}_L^K(\alpha ^*(\sigma ^G(u_{G,V})))\ = \ \operatorname{tr}_L^K(\alpha ^*(e_{G,V}))where L runs through all c...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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0cd0ee92570dd3b617f9bafa27341ca290891e12
subsection
544
1,121
Orthogonal spectra as global homotopy types
Moreover p_H:H\longrightarrow e denotes the unique homomorphism to the trivial group and 1=\operatorname{res}^{A_3}_e(e_{A_3}) is the restriction of the class e_{A_3} to the trivial group.Now we discuss how multiplicative features related to the smash product and the homotopy group pairings work out for global homotopy...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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3448e8968d4eba7cb61d3917c00fe8435cb76d43
subsection
545
1,121
Orthogonal spectra as global homotopy types
The bimorphism corresponding to the induced product on \Omega ^\bullet R thus has as (V,W)-component the composite\operatorname{map}_*(S^V, R(V)) \times \operatorname{map}_*(S^W, R(W)) \ \xrightarrow{} \ &\operatorname{map}_*(S^{V\oplus W}, R(V)\wedge R(W)) \\ \xrightarrow{} \ &\operatorname{map}_*(S^{V\oplus W}, R(V\o...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.054043788462877274, 0.006179484538733959, -0.007587033789604902, 0.0019778164569288492, 0.014144154265522957, -0.03375066816806793, 0.008163022808730602, 0.036558136343955994, 0.07165150344371796, 0.031202582642436028, -0.027739020064473152, -0.00780827458947897, -0.0025633417535573244, ...
ea888372e923de5ad8446f4f6151af755784dff0
subsection
546
1,121
Orthogonal spectra as global homotopy types
We omit the verification that this morphism is indeed inverse to the morphism (REF ).Construction 1.19 (Orthogonal ring spectra from orthogonal monoid spaces) The suspension spectrum \Sigma ^\infty _+ M of an orthogonal monoid space M becomes an orthogonal ring spectrum via the multiplication map(\Sigma ^\infty _+ M )...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.06514047086238861, 0.010042743757367134, -0.017185606062412262, 0.022206978872418404, 0.033577561378479004, -0.07338223606348038, -0.005906598176807165, 0.042857177555561066, 0.03449331223964691, 0.007459560409188271, -0.05161786824464798, -0.028052525594830513, -0.015361734665930271, 0...
4025ea41e3e103379231f68fa5d71edaa3532e41
subsection
547
1,121
Orthogonal spectra as global homotopy types
We refer to Remark REF below for more details.Theorem 1.22 Let G,K and L be compact Lie groups and X, Y and Z orthogonal spectra.(Biadditivity) The product \boxtimes :\pi _k^G(X) \times \pi _l^K (Y) \longrightarrow \pi _{k+l}^{G\times K}(X\wedge Y) is biadditive. (Unitality) Let 1\in \pi _0^e({\mathbb {S}}) denote th...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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9d4cd872466a07efdd622f414484f740fa151977
subsection
548
1,121
Orthogonal spectra as global homotopy types
For part (vi) we start with two special cases, namely L=K respectively H=G. The two proofs are analogous, so we only treat the case L=K:\operatorname{tr}_{H\times K}^{G\times K}(x\boxtimes y)\ &= \ \operatorname{tr}_{H\times K}^{G\times K}( p_H^*(x)\times p_K^*(y))\ = \ \operatorname{tr}_{H\times K}^{G\times K}(p_H^*(x...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.027609912678599358, 0.014751233160495758, -0.009958799928426743, 0.014964908361434937, 0.015354103408753872, -0.04282665252685547, 0.043467678129673004, 0.01858975924551487, 0.022893792018294334, 0.028601977974176407, -0.01388890016824007, -0.01295788586139679, 0.01057693175971508, 0.04...
7e302eabe12259fbe9e1262a634bdfc3351c8c11
subsection
549
1,121
Orthogonal spectra as global homotopy types
When X is an orthogonal spectrum, representing a global homotopy type, then \alpha ^*(X_G)=X_K, and the inflation maps become homomorphismsinflation map!of geometric fixed point homotopy groups\alpha ^* \ : \ \Phi ^G_k (X) \ \longrightarrow \ \Phi ^K_k (X) \ .These inflation maps between the geometric fixed point homot...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1723, "openalex_id": "https://openalex.org/W1507692549", "raw": "G. M. Kelly, Basic concepts of enriched category theory. Reprint of the 1982 original. Repr. Theory Appl. Categ. No. 10 (2005), vi+137 pp.", "source_ref_id": "...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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0b2ee4718be32204ee4a5bfbaaedfc01ea4aa720
subsection
550
1,121
Orthogonal spectra as global homotopy types
So one should think of the semifree orthogonal spectrum F_{G,V}=F_{G,V} S^0 as the `global Thom spectrum' associated to a `virtual global vector bundle', namely the negative of the vector bundle over B_{\operatorname{gl}}G associated to the G-representation V.The special case G=O(m) of the orthogonal group with V=\nu _...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/s11511-009-0036-9", "end": 1069, "openalex_id": "https://openalex.org/W2019538266", "raw": "S. Galatius, U. Tillmann, I. Madsen, M. Weiss, The homotopy type of the cobordism category. Acta Math. 202 (2009), no. 2, 195–239.", "...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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85d0615895540ff7db2dae7c37910fef2970d77a
subsection
551
1,121
Orthogonal spectra as global homotopy types
Indeed, a morphism(F_{G,V}A)\wedge (F_{K,W}B)\ \longrightarrow \ F_{G\times K,V\oplus W}(A\wedge B)is obtained by the universal property (REF ) from the bimorphism with (U,U^{\prime })-component(F_{G,V}A)(U)\wedge (F_{K,W}B)(U^{\prime }) \ = \ ({\mathbf {O}}(V,U)&\wedge _G A)\wedge ({\mathbf {O}}(W,U^{\prime })\wedge _...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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04adcd10dc139704c519fc8bd5cc0c8b419a1a17
subsection
552
1,121
Orthogonal spectra as global homotopy types
We will now prove a generalization of the fact that \Sigma ^\infty _+ \rho _{V,W}/G is a global equivalence for these global Thom spectra. Given G-representations V and W, we define a restriction morphism of orthogonal spectra\index {symbol}{\lambda _{G,V,W} - {fundamental global equivalence of orthogonal spectra}} \la...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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5037bc4acf43e49aad21d54a39e943106ac480dd
subsection
553
1,121
Orthogonal spectra as global homotopy types
In a first step we produce a K-representation U^{\prime }\in s({\mathcal {U}}_K) with U\subseteq U^{\prime } and a continuous (K\times G)-equivariant maph\ :\ {\mathbf {L}}(W,U) \ \longrightarrow \ {\mathbf {L}}(V\oplus W,U^{\prime })such that the lower right triangle in the diagram\begin{aligned} @C=15mm{ {\mathbf {L}...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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5e8b5443ecc244b29a82971ca8c539562bbfdeaa
subsection
554
1,121
Orthogonal spectra as global homotopy types
We conclude that the restriction map \rho ({\mathcal {U}}_K):{\mathbf {L}}(V\oplus W,{\mathcal {U}}_K) \longrightarrow {\mathbf {L}}(W,{\mathcal {U}}_K) is both a (K\times G)-weak equivalence and a (K\times G)-fibration.Since {\mathbf {L}}(W,U) is cofibrant as a (K\times G)-space (by Proposition REF  (ii)), the (K\time...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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cf7fb8021a67a502dd8d0e91ab17e5ecf48b6e51
subsection
555
1,121
Orthogonal spectra as global homotopy types
So after increasing U^{\prime }, if necessary, we have proved the claim subsumed in the diagram (REF ).Now we lift the data produced in the first step to the Thom spaces of the orthogonal complement bundles. The diagram (REF ) is covered by morphisms of (K\times G)-vector bundles:\begin{aligned} @C=12mm{ (U^{\prime }-U...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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d61d9f53fc7fa6d4df0a731305fce7c75c9189c2
subsection
556
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Orthogonal spectra as global homotopy types
In particular, the square\begin{aligned} { \xi (V\oplus W, U^{\prime })\times V [r]^-{\bar{\rho }(U^{\prime })} [d] & \xi (W,U^{\prime }) [d]\\ {\mathbf {L}}(V\oplus W, U^{\prime }) [r]_-{\rho (U^{\prime })} & {\mathbf {L}}(W,U^{\prime })} \end{aligned}is a pullback; so the composite(U^{\prime }-U)\times \xi (W,U) \ \l...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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fee088f8ca39b2209277f24c67d42a8d2e0a4398
subsection
557
1,121
Orthogonal spectra as global homotopy types
Again because the square (REF ) is a pullback, the composite\xi (V\oplus W,U)\times V \times (U^{\prime }-U) \times [0,1]\ \longrightarrow \ {\mathbf {L}}(V\oplus W,U) \times [0,1]\ \xrightarrow{} \ {\mathbf {L}}(V\oplus W, U^{\prime })and the map of total spaces(U^{\prime }-U) \times \xi (V\oplus W,U)\times V\times [0...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01600978896021843, 0.005772834178060293, -0.03641502186655998, 0.011843276210129261, -0.006692366674542427, -0.0034282163251191378, 0.027517301961779594, 0.01997789740562439, 0.025090651586651802, 0.019947374239563942, -0.03128700703382492, -0.013392364606261253, 0.02161092683672905, 0....
86f98d0d2c8ef2128f5762a1944606d7ff986901
subsection
558
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Orthogonal spectra as global homotopy types
We conclude that \bar{H} makes the upper left triangle in (REF ) commute up to equivariant homotopy of vector bundle maps.Passing to Thom spaces in (REF ) gives a diagram of (K\times G)-equivariant based maps:@C=20mm{ S^{U^{\prime }-U}\wedge {\mathbf {O}}(V\oplus W,U)\wedge S^V [r]^{\sigma _{U,U^{\prime }-U}\wedge S^V}...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.05765362083911896, 0.01837346702814102, -0.025316929444670677, -0.009224885143339634, -0.01671008951961994, -0.0283384807407856, 0.013200207613408566, -0.012086201459169388, -0.0038856680039316416, 0.03168049827218056, -0.012711876071989536, 0.025347450748085976, 0.0377541184425354, 0.0...
9ce5b2135e0cc8baacb1ff411adc76f15acae468
subsection
559
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Orthogonal spectra as global homotopy types
For A=S^0 and \bar{U}={\mathbb {R}}^k this shows that \pi _{-k}^G(\lambda _{G,V,W}) is an isomorphism. So \lambda _{G,V,W} is a global equivalence.
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.03332488611340523, 0.035430580377578735, -0.002626394620165229, 0.008964454755187035, -0.0256040096282959, -0.03964196518063545, 0.01580795831978321, -0.011611830443143845, 0.03973351791501045, 0.02297952212393284, -0.001576408976688981, 0.019439516589045525, 0.03417937085032463, 0.0439...
4bed69e78064f52ec6451fed06da84ad63449db0
subsection
560
1,121
Global functors
This section is devoted to the category of global functors, the natural home of the collection of equivariant homotopy groups of a global stable homotopy type. The category of global functors is a symmetric monoidal abelian category with enough injectives and projectives that plays the same role for global homotopy the...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.048663511872291565, -0.007417752873152494, -0.026620008051395416, 0.017116131260991096, 0.012005699798464775, -0.03252370283007622, -0.020701061934232712, 0.019816270098090172, 0.029472697526216507, 0.038259588181972504, -0.035818785429000854, 0.02823704108595848, -0.008641968481242657, ...
c5b37e00c9428386dae58e1eec6cea533ee01d36
subsection
561
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Global functors
The functor \pi _0^K is abelian group valued, so the set {\mathbf {A}}(G,K) is an abelian group under objectwise addition of transformations. Proposition REF , applied to the category of orthogonal spectra, shows that set valued natural transformations between the two reduced additive functors \pi _0^G and \pi _0^K are...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 2071, "openalex_id": "", "raw": "B. Stenström, Rings of quotients. An introduction to methods of ring theory. Die Grundlehren der Mathematischen Wissenschaften, Band 217. Springer-Verlag, New York-Heidelberg, 1975. viii+309 pp.", ...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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c02df4474ce52d320ce9b47a92d8c3c1c37de09b
subsection
562
1,121
Global functors
This calculation has two ingredients: We identify natural transformations from \pi _0^G to \pi _0^K with the group \pi _0^K(\Sigma ^\infty _+ B_{\operatorname{gl}}G), and then we exploit the explicit calculation of the latter group in Corollary REF .Proposition 2.5 global classifying space Let G and K be compact Lie gr...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.07884924113750458, 0.012732138857245445, 0.015165663324296474, 0.008429606445133686, 0.026928970590233803, -0.0560549758374691, 0.011000446043908596, 0.01507411990314722, 0.04134703055024147, 0.038417644798755646, -0.012732138857245445, -0.011145389638841152, 0.011236933059990406, 0.016...
d12a65b4e97c2b7362a49c641aa59863e4261d51
subsection
563
1,121
Global functors
For a pair (L,\alpha ) consisting of a closed subgroup L of K and a continuous group homomorphism \alpha :L\longrightarrow G we define[L,\alpha ]\ = \ \operatorname{tr}_L^K\circ \alpha ^*\ \in \ {\mathbf {A}}(G,K) \ ,the natural transformation whose value at X is the composite\pi _0^G (X) \ \xrightarrow{}\ \pi _0^L(X) ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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390a49487378f65ca33ca17344cc456616a29ea2
subsection
564
1,121
Global functors
By Proposition REF the composite{\mathbb {Z}}\lbrace [L,\alpha ]\ |\ \ |W_KL| <\infty ,\, \alpha :L\longrightarrow G\rbrace \ \longrightarrow \ \operatorname{Nat}(\pi _0^G,\pi _0^K) \ \xrightarrow{} \ \pi _0^K(\Sigma ^\infty _+ {\mathbf {L}}_{G,V})is an isomorphism, where the first map takes [L,\alpha ] to \operatorna...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.052467599511146545, -0.022342223674058914, -0.00620363000780344, 0.04367721825838089, 0.016192007809877396, -0.0058259181678295135, -0.007680139504373074, 0.016054658219218254, 0.027943041175603867, 0.02354785054922104, -0.055855561047792435, 0.004475312307476997, 0.0021670737769454718, ...
79cdc16fceb75db5a6792552403c1877cd916ea5
subsection
565
1,121
Global functors
Then \alpha and \alpha ^{\prime } belong to the same path component of the space \hom (K,G) of continuous homomorphisms, so they are conjugate by an element of G, compare Proposition REF .This explicit description allows us to relate our notion of global functor to other `global' versions of Mackey functors. For exampl...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/bf02566643", "end": 453, "openalex_id": "https://openalex.org/W2043632576", "raw": "P. Symonds, A splitting principle for group representations. Comment. Math. Helv. 66 (1991), no. 2, 169–184.", "source_ref_id": "091a2ace1d82f...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.059593841433525085, -0.0010546400444582105, 0.005511591210961342, -0.014433121308684349, 0.03860021010041237, -0.05724425986409187, 0.012236113660037518, -0.007708598859608173, 0.025738557800650597, 0.042017776519060135, 0.0021779367234557867, 0.00856680516153574, -0.02808813564479351, ...
d984e9acc56734691f622cd0f0baf2be7f2fa852
subsection
566
1,121
Global functors
By Proposition REF , the action on the unit 1\in \pi _0({\mathbb {S}}) is an isomorphism of global functors{\mathbb {A}}\ = \ {\mathbf {A}}(e,-) \ \longrightarrow \ {\underline{\pi }}_0 ( {\mathbb {S}})from the Burnside ring global functor {\mathbb {A}} to the 0-th homotopy global functor of the sphere spectrum.Example...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/bfb0085965", "end": 1585, "openalex_id": "https://openalex.org/W205144100", "raw": "T. tom Dieck, Transformation groups and representation theory. Lecture Notes in Mathematics, Vol. 766. Springer-Verlag, Berlin, 1979. viii+309 pp.",...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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ff6a781191ac5657742715314072cca795e079db
subsection
567
1,121
Global functors
Moreover, the class of a general compact G-ENR X is expressed in terms of this basis by the formula[X]\ = \ {\sum }_{(H)}\ \chi ^{\text{AS}}(G\backslash X_{(H)})\cdot [G/H]\ ;the sum is over conjugacy classes of closed subgroups, X_{(H)} is the orbit type subspace, and \chi ^{\text{AS}} is the Euler characteristic base...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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c364f4cbc777b095e09924a3eb7f5cf6e174f8cb
subsection
568
1,121
Global functors
The transfer maps \operatorname{tr}_H^G:\mathbf {RU}(H)\longrightarrow \mathbf {RU}(G) along a closed subgroup inclusion H\le G are given by the smooth induction of Segal . If H is a subgroup of finite index of G, then this induction sends the class of an H-representation to the induced G-representation \operatorname{m...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/bf01394272", "end": 519, "openalex_id": "https://openalex.org/W4230690795", "raw": "V. P. Snaith, Explicit Brauer induction. Invent. Math. 94 (1988), no. 3, 455–478.", "source_ref_id": "979e93cae9b68dba5d84e67fa6e77495efb7b0fa...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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5bf014fdb475010e0dcf70fc82199194fc813136
subsection
569
1,121
Global functors
Generating operations can be displayed as follows:@R=1mm@!C=4mm{ &&&&&&&\\ F(C_3) [rr]_{\operatorname{res}} && F(e) @<.9ex>@/^1pc/[ll]^{p^*} @/_1pc/[ll]_{\operatorname{tr}} && F(C_3)[rr]_{\operatorname{res}} && F(e) @/_1pc/[ll]_{\operatorname{tr}} \\ @<2ex>@(dl,ul)[uu]^{\alpha ^*} &&&&&& @<-2ex>@(dr,ur)[uu]_{\tau } \\ ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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9c39bab47337a3f6405c2cbe62a2ad65431a6790
subsection
570
1,121
Global functors
Given operations \tau \in {\mathbf {A}}(G,K) and \psi \in {\mathbf {A}}(G^{\prime },K^{\prime }), there is a unique operation\tau \times \psi \ \in \ {\mathbf {A}}(G\times G^{\prime },\, K\times K^{\prime })with the following property: for all orthogonal spectra X and Y and all classes x\in \pi _0^G(X) and y\in \pi _0^...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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80a5c606df2e1c5a1e0e3b5d74ad722f776fcc1e
subsection
571
1,121
Global functors
There is thus a unique operation \tau \times \psi \in {\mathbf {A}}(G\times G^{\prime },K\times K^{\prime }) that satisfies(\tau \times \psi )(e_{G,V}\boxtimes e_{G^{\prime },V^{\prime }})\ = \ \tau (e_{G,V})\boxtimes \psi (e_{G^{\prime },V^{\prime }})in \pi _0^{K\times K^{\prime }}(\Sigma ^\infty _+ {\mathbf {L}}_{G,V...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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f2f4a3d0924ec2d71d9457a4c6b71e0f9ee1439d
subsection
572
1,121
Global functors
Naturality then yields(\Sigma ^\infty _+\rho _{G,V,W}\wedge \Sigma ^\infty _+&\rho _{G^{\prime },V^{\prime },W^{\prime }})_*( (\tau \times \psi )(e_{G,V\oplus W}\boxtimes e_{G^{\prime },V^{\prime }\oplus W^{\prime }}))\\ &= \ (\tau \times \psi )( (\Sigma ^\infty _+\rho _{G,V,W})_*(e_{G,V\oplus W})\boxtimes (\Sigma ^\in...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.017321400344371796, 0.01837441883981228, -0.007035388145595789, -0.021747132763266563, -0.027714241296052933, -0.033818699419498444, 0.01961057260632515, 0.029545579105615616, 0.04721798375248909, 0.017779234796762466, -0.014337847009301186, 0.0019820414017885923, -0.010263120755553246, ...
25aff8a4f7c1ca247bcf759471c41da915734fd0
subsection
573
1,121
Global functors
So in particular it induces an isomorphism on \pi _0^{K\times K^{\prime }}, and we can conclude that(\tau \times \psi )(e_{G,V\oplus W}\boxtimes e_{G^{\prime },V^{\prime }\oplus W^{\prime }})\ = \ \tau (e_{G,V\oplus W})\boxtimes \psi (e_{G^{\prime },V^{\prime }\oplus W^{\prime }}) \ .Now the relation (REF ) follows by ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.0160067081451416, 0.029587233439087868, -0.02284274809062481, 0.008758675307035446, -0.024887455627322197, -0.0024643312208354473, 0.005981534253805876, 0.02601662278175354, 0.04193177819252014, 0.05221635475754738, -0.04278628155589104, -0.014824134297668934, 0.028015553951263428, 0.01...
666cfc717b15c3bf7e30423c884d920769128808
subsection
574
1,121
Global functors
Using parts (v) and (vi) of Theorem REF we deduce[L\times L^{\prime },\alpha \times \alpha ^{\prime }](x\boxtimes y)\ &= \ \operatorname{tr}_{L\times L^{\prime }}^{K\times K^{\prime }}( (\alpha \times \alpha ^{\prime })^*(x\boxtimes y))\\ &= \ \operatorname{tr}_{L\times L^{\prime }}^{K\times K^{\prime }}( \alpha ^*(x)\...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.03298100829124451, 0.019449947401881218, -0.009709718637168407, -0.001451118616387248, 0.00945038627833128, -0.01946520246565342, -0.023202642798423767, 0.05278182029724121, 0.012768318876624107, 0.036154020577669144, -0.05015798285603523, -0.04674089327454567, -0.011677595786750317, 0....
976550945425064b824308f0cfc43cee70994aca
subsection
575
1,121
Global functors
The relation((\tau \times \psi )+(\tau ^{\prime }\times \psi ))(x\boxtimes y) &= \ (\tau \times \psi )(x\boxtimes y)+(\tau ^{\prime }\times \psi )(x\boxtimes y)\\ &= \ (\tau (x)\boxtimes \psi (y))+(\tau ^{\prime }(x)\boxtimes \psi (y)) \\ &= \ (\tau (x)+\tau ^{\prime }(x))\boxtimes \psi (y) \ = \ (\tau +\tau ^{\prime }...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01646655797958374, 0.022876152768731117, -0.035252779722213745, 0.02023600973188877, -0.02983514405786991, 0.016405513510107994, 0.006558390334248543, 0.0326278954744339, 0.04578283056616783, 0.07136017084121704, -0.032536331564188004, -0.07972316443920135, 0.017595866695046425, 0.03085...
1794511933151d2b88d4d1e7fba89fb7bbf78ee0
subsection
576
1,121
Global functors
The relation(\tau \times (\psi \times \kappa ))(a_{G,G^{\prime },G^{\prime \prime }}^*((x\boxtimes y)\boxtimes z)) \ &= \ ((\tau \times (\psi \times \kappa ))(x\boxtimes (y\boxtimes z))) \\ &= \ \tau (x)\boxtimes (\psi (y)\boxtimes \kappa (z))\\ &= \ a_{K,K^{\prime },K^{\prime \prime }}^*( (\tau (x)\boxtimes \psi (y))\...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1016/0022-4049(93)90030-w", "end": 1914, "openalex_id": "https://openalex.org/W2008207368", "raw": "P. Webb, Two classifications of simple Mackey functors with applications to group cohomology and the decomposition of classifying spaces....
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01872318610548973, 0.01110878586769104, -0.030076121911406517, 0.010940933600068092, -0.0016947383992373943, -0.052461545914411545, 0.03134264424443245, 0.00235756509937346, 0.02285846322774887, 0.06186128780245781, -0.046296779066324234, -0.015808656811714172, 0.02975567616522312, 0.04...
d54a5d78a68e5ba6476112999efbad5755fa17bb
subsection
577
1,121
Global functors
Composition\circ \ : \ {\mathbb {A}}^\text{c}(K,L) \times {\mathbb {A}}^\text{c}(G,K) \ \longrightarrow \ {\mathbb {A}}^\text{c}(G,L)is induced by the balanced product over K, i.e., it is the biadditive extension of(S,T) \ \longmapsto \ S\times _K T \ .Here S has a left L-action and a commuting free right K-action, whe...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.01804649457335472, 0.01999911479651928, -0.026726506650447845, 0.040150780230760574, 0.011601317673921585, -0.04350684955716133, 0.00032678761635906994, 0.008702894672751427, -0.008016427047550678, 0.048144325613975525, -0.010083459317684174, -0.014774328097701073, -0.0024712865706533194,...
5ca5be04de7e30c59f3002ecb8ff3530e91c5d99
subsection
578
1,121
Global functors
We omit the details.The restriction of the monoidal structure on the Burnside category to finite groups has an interpretation in terms of the cartesian product of bisets: under the equivalence of categories \Psi :{\mathbf {A}}_{{\mathcal {F}}in}\cong {\mathbb {A}}^c, it corresponds to the monoidal structure{\mathbb {A}...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/bfb0060438", "end": 1661, "openalex_id": "https://openalex.org/W1859542606", "raw": "B. Day, On closed categories of functors. Reports of the Midwest Category Seminar, IV pp. 1–38. Lecture Notes in Mathematics, Vol. 137. Springer-Ve...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.02563563734292984, 0.009109807200729847, -0.018967321142554283, 0.002227859105914831, -0.002235488733276725, -0.06616435945034027, -0.015617902390658855, 0.04049820452928543, 0.009987217374145985, 0.050111569464206696, -0.05999960005283356, -0.015419530682265759, -0.005699351895600557, ...
bc7254791b5be4b305f1b83c95639dbd97a220bb
subsection
579
1,121
Global functors
We denote by F\otimes F^{\prime }:{\mathbf {A}}\otimes {\mathbf {A}}\longrightarrow {\mathcal {A}}b the objectwise tensor product given on objects by(F\otimes F^{\prime })(G,G^{\prime })\ = \ F(G)\otimes F^{\prime }(G^{\prime }) \ .A bimorphism is a natural transformationF\otimes F^{\prime }\ \longrightarrow \ F^{\prim...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.03514982759952545, -0.005534114316105843, -0.009893517009913921, 0.008528104983270168, -0.006285472307354212, -0.03734669089317322, -0.017285048961639404, 0.04482213035225868, 0.01199121680110693, 0.03353269025683403, -0.0675535723567009, -0.00781870074570179, 0.004180144518613815, 0.01...
f12d8d762fcdb27f87cacf32bc11ab2c9dc43d2a
subsection
580
1,121
Global functors
Equivalently: for every compact Lie group G the maps \lbrace b_{G,G^{\prime }}\rbrace _{G^{\prime }} form a morphism of global functors F(G)\otimes F^{\prime }(-)\longrightarrow F^{\prime \prime }(G\times -) and for every compact Lie group G^{\prime } the maps \lbrace b_{G,G^{\prime }}\rbrace _G form a morphism of glob...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.05659407749772072, -0.024407150223851204, -0.033132705837488174, -0.002015496604144573, 0.018488416448235512, -0.03938703611493111, -0.020151153206825256, 0.030386900529265404, -0.009038272313773632, 0.02250034175813198, -0.036732759326696396, -0.004885243717581034, -0.0096179423853755, ...
3e0228d6b6a68bbbfa348c585179757b183b8737
subsection
581
1,121
Global functors
The map d is the difference of two homomorphisms; one of them sums the tensor products of{\mathbf {A}}(H\times H^{\prime },-)\otimes {\mathbf {A}}(G,H)\otimes {\mathbf {A}}(G^{\prime },H^{\prime })\ \longrightarrow \ {\mathbf {A}}(G\times G^{\prime },-)\ , \ \varphi \otimes \tau \otimes \tau ^{\prime } \ \longmapsto \ ...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.026309188455343246, -0.01703077368438244, -0.03720521926879883, -0.00797363743185997, -0.017976928502321243, -0.02269243821501732, -0.005085578188300133, 0.024859435856342316, -0.008874010294675827, 0.0335121676325798, -0.041661303490400314, -0.02122742496430874, 0.013688713312149048, -...
9ba03327b4fe7fbe2eace925ca2f1cbba6f2c707
subsection
582
1,121
Global functors
Theorem REF describes explicit free generators for the morphism groups in the Burnside category; using this, the value (F\Box M)(K) can be expanded into a cokernel of a morphism between two huge sums of tensor products of values of F and M.Now we consider a short exact sequence of global functors0 \longrightarrow M \l...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 2192, "openalex_id": "", "raw": "L. G. Lewis, Jr., When projective does not imply flat, and other homological anomalies. Theory Appl. Categ. 5 (1999), no. 9, 202–250.", "source_ref_id": "a04e77bacbb8b1d0a9f861e7f197c4b7e9869...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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c26a8fdc9d414123511712c34e3f23d348b8a7ad
subsection
583
1,121
Global functors
Theorem 6.10 of shows that the representable functor {\mathbf {A}}_{C_p} is not flat, where C_p is a cyclic group of prime order p.box product!of global functors|)We now remark that bimorphisms of global functors can be identified with another kind of structure that we call `diagonal products'.Definition 2.19 Let X,Y ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 296, "openalex_id": "", "raw": "L. G. Lewis, Jr., When projective does not imply flat, and other homological anomalies. Theory Appl. Categ. 5 (1999), no. 9, 202–250.", "source_ref_id": "a04e77bacbb8b1d0a9f861e7f197c4b7e98691...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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e4c90e23316a32b5a4fe99f983490d0b27e43b7c
subsection
584
1,121
Global functors
For a group homomorphism \alpha :K\longrightarrow G we have \Delta _G\circ \alpha =(\alpha \times \alpha )\circ \Delta _K, so the following diagram commutes:@C=12mm{ X(G)\otimes Y(G) [r]^-{\mu _{G,G}} [d]_{\alpha ^*\otimes \alpha ^*} & Z(G\times G)[r]^-{\Delta _G^*} [d]^{(\alpha \times \alpha )^*} & Z(G)[d]^{\alpha ^*}...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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352954db893869d2ed89dadb3b8e17f0cd742804
subsection
585
1,121
Global functors
If the diagonal product \nu was defined from an external product \mu as above, then\nu _{G\times K}\circ (p_G^*\otimes p_K^*)\ &= \ \Delta _{G\times K}^* \circ \mu _{G\times K,G\times K}\circ (p_G^*\otimes p_K^*)\\ &= \ \Delta _{G\times K}^*\circ (p_G\times p_K)^*\circ \mu _{G,K}\ = \ \mu _{G,K}because the composite (p...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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5733493b13c2b614a9d32a485911327649b5eb0c
subsection
586
1,121
Global functors
Then\operatorname{tr}_{H\times K}^{G\times K}(\mu _{H,K}(x\otimes y)) \ &= \ \operatorname{tr}_{H\times K}^{G\times K}(\nu _{H\times K}(p_H^*(x)\otimes \operatorname{res}^{G\times K}_{H\times K}(p_K^*(y)))) \\ &=\ \nu _{G\times K}(\operatorname{tr}_{H\times K}^{G\times K}(p_H^*(x))\otimes p_K^*(y)) \\ &=\ \nu _{G\times...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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d8c408e0b66d4c7daf8bd5facb2ed9523d8a0649
subsection
587
1,121
Global model structures for orthogonal spectra
In this section we establish the strong level and global model structures on the category of orthogonal spectra. Many arguments are parallel to the unstable analogs in Section , so there is a certain amount of repetition. The main model structure of interest for us is the global model structure, see Theorem REF . The w...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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5309b3fc4b728b3de69a3c0ef3bfbbe28a3ad12e
subsection
588
1,121
Global model structures for orthogonal spectra
We specialize the general recipe to the category of orthogonal spectra. For a morphism f:X\longrightarrow Y of orthogonal spectra and m\ge 0 we have a commutative square of O(m)-spaces:@C=12mm{ L_m X[r]^{L_m f}[d]_{\nu _m^X} & L_m Y [d]^{\nu _m^Y}\\ X({\mathbb {R}}^m)[r]_{f({\mathbb {R}}^m)} & Y({\mathbb {R}}^m)}We thu...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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4b6a4a872fc36c7b764018ec78bd6832af8c2750
subsection
589
1,121
Global model structures for orthogonal spectra
A morphism f:X\longrightarrow Y of orthogonal spectra isan {\mathcal {F}}-level equivalenceF-level equivalence@{\mathcal {F}}-level equivalence!of orthogonal spectra if the map f({\mathbb {R}}^m):X({\mathbb {R}}^m)\longrightarrow Y({\mathbb {R}}^m) is an {\mathcal {F}}(m)-equivalence for all m\ge 0; an {\mathcal {F}}-...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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41f7809eb755f94b74347717ab8f6ca4f0af690e
subsection
590
1,121
Global model structures for orthogonal spectra
The morphism f is an {\mathcal {F}}-level fibration if and only if for every compact Lie group G and every faithful G-representation V the map f(V):X(V)\longrightarrow Y(V) is an ({\mathcal {F}}\cap G)-fibration.Now we are ready to establish the {\mathcal {F}}-level model structure.Proposition 3.5 Let {\mathcal {F}} b...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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2465858527ce2b5e53f13e13880d1b86feb3de76
subsection
591
1,121
Global model structures for orthogonal spectra
Since the functor under consideration is a left adjoint, it suffices to prove the claim for the generating acyclic cofibrations, i.e., the maps( O(m)/H \times j_k)_+for all H\in {\mathcal {F}}(m) and all k\ge 0, where j_k:D^k\times \lbrace 0\rbrace \longrightarrow D^k\times [0,1] is the inclusion. Up to isomorphism, th...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.044184595346450806, -0.016828594729304314, -0.03353513404726982, 0.00793369859457016, 0.012236203998327255, -0.014013657346367836, -0.012732059694826603, 0.019361276179552078, 0.006831372156739235, 0.022595783695578575, -0.03060576692223549, -0.009978150948882103, -0.003207807894796133, ...
d6e9891c297242435c5b1e069061fa5bb5ffc1af
subsection
592
1,121
Global model structures for orthogonal spectra
The {\mathcal {F}}-level model structure is topological by Proposition REF , where we take {\mathcal {G}} as the set of semifree orthogonal spectra F_{H,{\mathbb {R}}^m} for all m\ge 0 and all H\in {\mathcal {F}}(m), and {\mathcal {Z}}=\emptyset as the empty set.When {\mathcal {F}}=\langle e\rangle is the minimal glob...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1112/s0024611501012692", "end": 577, "openalex_id": "https://openalex.org/W2086997195", "raw": "M. A. Mandell, J. P. May, S. Schwede, B. Shipley, Model categories of diagram spectra. Proc. London Math. Soc. (3) 82 (2001), no. 2, 441–512....
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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7632201884c238562a8cffa8567d0a3bfc5b088a
subsection
593
1,121
Global model structures for orthogonal spectra
This means that global \Omega -spectra abound, because every orthogonal spectrum admits a global equivalence to a global \Omega -spectrum.Remark 3.9 Global \Omega -spectra are a very rich kind of structure, because they encode compatible equivariant infinite loop spaces for all compact Lie groups at once. For a global ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 569, "openalex_id": "https://openalex.org/W2075488415", "raw": "M. A. Mandell, J. P. May, Equivariant orthogonal spectra and S-modules. Mem. Amer. Math. Soc. 159 (2002), no. 755, x+108 pp.", "source_ref_id": "1fe5cf0f78b8a5a...
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
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e5a2c57fd1c1a4316672e53f776d75d8b9cdc9fb
subsection
594
1,121
Global model structures for orthogonal spectra
Specialized to the trivial group, the condition in Definition REF says that X is in particular a non-equivariant \Omega -spectrum in the sense that the adjoint structure map \tilde{\sigma }_{{\mathbb {R}},W}:X(W)\longrightarrow \Omega X({\mathbb {R}}\oplus W) is a weak equivalence of (non-equivariant) spaces for every...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.05748138949275017, 0.02106328122317791, -0.001976590370759368, -0.03409809246659279, 0.02237592078745365, -0.028969641774892807, 0.028237007558345795, -0.0051856879144907, 0.06178562343120575, 0.03000754304230213, -0.010554535314440727, -0.01298139151185751, 0.014767191372811794, 0.0214...
a16c0613d0a681f120bb3450994fca6c64ac3cff
subsection
595
1,121
Global model structures for orthogonal spectra
We denote by \xi (f) the resulting compositeY \ \xrightarrow{} \ \Omega ( \operatorname{sh}Y)\ \xrightarrow{}\ F(\operatorname{sh}f) \ .We note that the orthogonal spectrum F(\operatorname{Id}_{\operatorname{sh}X}) has a preferred contraction, so part (ii) of the next proposition is a way to make precise that the seque...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.02532065100967884, -0.011927721090614796, -0.01689569652080536, -0.03824807330965996, 0.04441416263580322, -0.0368744395673275, 0.010126734152436256, 0.01619361713528633, 0.055830586701631546, 0.021749204024672508, -0.01392712164670229, 0.004910741001367569, 0.0006477065617218614, 0.023...
37db7fabadd1d540b1bbae0d033339e6fad17690
subsection
596
1,121
Global model structures for orthogonal spectra
We consider the commutative diagram@C=10mm{ X(W)^G [d]_{f(W)^G} [r]^-{(\tilde{\sigma }_{V,W})^G} & \operatorname{map}_*^G(S^V, X(V\oplus W)) [d]^{\operatorname{map}_*^G(S^V,f(V\oplus W))} \\ Y(W)^G [d]_{(\xi (f)(W))^G}[r]_-{(\tilde{\sigma }_{V,W})^G} & \operatorname{map}_*^G(S^V, Y(V\oplus W)) [d]^{\operatorname{map}_*...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.026043739169836044, 0.0026680720038712025, -0.008643103763461113, -0.027966123074293137, 0.03268054500222206, -0.043604571372270584, 0.024518035352230072, 0.019818872213363647, 0.03747124969959259, 0.046808548271656036, -0.006690204609185457, -0.018293170258402824, 0.001637269277125597, ...
009695c6f2b7bccdc84252d3267d26ec9dddc5f4
subsection
597
1,121
Global model structures for orthogonal spectra
An orthogonal spectrum X is an {\mathcal {F}}-\Omega -spectrumF-Omega-spectrum@{\mathcal {F}}-\Omega -spectrum if for every compact Lie group G in {\mathcal {F}}, every G-representation V and every faithful G-representation W the adjoint structure map \tilde{\sigma }_{V,W}\ :\ X(W)\ \longrightarrow \ \operatorname{map...
{ "cite_spans": [] }
10.1017/9781108349161
1802.09382
Global homotopy theory
[ "Stefan Schwede" ]
[ "math.AT" ]
2,018
en
Mathematics
[ -0.03892919048666954, 0.016139138489961624, -0.024010401219129562, -0.010853494517505169, 0.008061942644417286, -0.05903447046875954, 0.05613613501191139, 0.009091612882912159, 0.027625691145658493, 0.017817120999097824, -0.02509346231818199, -0.006422095932066441, 0.017984919250011444, 0....