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96766d3dacabf84d0649335198353d233097b0896e236e6e9c8cfaf1991f2f48
2026-01-07T00:00:00-05:00
A Context for Manifold Calculus
arXiv:2403.03321v5 Announce Type: replace Abstract: We develop Weiss's manifold calculus in the setting of $\infty$-categories, where we allow the target $\infty$-category to be any $\infty$-category with small limits. We will establish the connection between polynomial functors, Kan extensions, and Weiss sheaves, and ...
https://arxiv.org/abs/2403.03321
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f760fc2aa02a4a7df47bdaba8649f0fcfcc284ed30e8f02eb066de2c39e4329a
2026-01-07T00:00:00-05:00
The global Gan--Gross--Prasad conjecture for Fourier--Jacobi periods on unitary groups I: Coarse expansions of the relative trace formulae
arXiv:2404.07342v3 Announce Type: replace Abstract: This is the first of a series of three papers where we prove the Gan--Gross--Prasad conjecture for Fourier--Jacobi periods on unitary groups and an Ichino--Ikeda type refinement. Our strategy is based on the comparison of relative trace formulae formulated by Liu. The...
https://arxiv.org/abs/2404.07342
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821848ed4f5a497ec2c8186f6f0621853ea0b069dbf3acafc90b9951986a6f82
2026-01-07T00:00:00-05:00
Real plane separating (M-2)-curves of degree d and totally real pencils of degree d-3
arXiv:2404.09671v4 Announce Type: replace Abstract: It is well known that a non-singular real plane projective curve of degree five with five connected components is separating if and only if its ovals are in non-convex position. In this article, this property is set into a different context and generalised to all real...
https://arxiv.org/abs/2404.09671
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9483d87f0f5c12798d10c93cb03624dcf3afa2cf76f39de288c74a6a1870b2b7
2026-01-07T00:00:00-05:00
Master equations with indefinite nonlinearities
arXiv:2405.02091v2 Announce Type: replace Abstract: In this paper, we consider the following indefinite fully fractional heat equation involving the master operator \begin{equation} (\partial_t -\Delta)^{s} u(x,t) = x_1u^p(x,t)\ \ \mbox{in}\ \R^n\times\R , \end{equation} where $s\in(0,1)$, and $-\infty < p < \infty$. U...
https://arxiv.org/abs/2405.02091
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08cd68ae82b7a62962658a808905b3807068ed91f851efcf690d6c20363c89cb
2026-01-07T00:00:00-05:00
Common Noise by Random Measures: Constructing Mean-Field Equilibria for Competitive Investment and Hedging
arXiv:2408.01175v2 Announce Type: replace Abstract: We construct Nash-equilibria in mean-field portfolio games of optimal investment and hedging under relative performance concerns with exponential (CARA) utility preferences. Common noise dynamics are modeled by integer-valued random measures, for instance Poisson rand...
https://arxiv.org/abs/2408.01175
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d3153a4eed35f0b8e47fb019fbfe68ee3daa5ed418ff70ef9f475e69bd182523
2026-01-07T00:00:00-05:00
Monodromy and vanishing cycles for complete intersection curves
arXiv:2408.06479v3 Announce Type: replace Abstract: We compute the topological monodromy of every family of complete intersection curves. Like in the case of plane curves previously treated by the second-named author, we find the answer is given by the $r$-spin mapping class group associated to the maximal root of the ...
https://arxiv.org/abs/2408.06479
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d682f7444a363686ace5beceb04d2e07d09ee8fdfca1e2753a0208f8fb21d447
2026-01-07T00:00:00-05:00
Instability of Legendrian knottedness, and non-regular Lagrangian concordances of knots
arXiv:2409.00290v2 Announce Type: replace Abstract: We show that the family of smoothly non-isotopic Legendrian pretzel knots from the work of Cornwell-Ng-Sivek that all have the same Legendrian invariants as the standard unknot have front-spuns that are Legendrian isotopic to the front-spun of the unknot. Besides that...
https://arxiv.org/abs/2409.00290
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ded1859347adf67ec9a4b1ea26eba0e39e774db0c2c6d13f61cbd557fad93abe
2026-01-07T00:00:00-05:00
A combination theorem for hierarchically quasiconvex subgroups, and application to geometric subgroups of mapping class groups
arXiv:2409.03602v2 Announce Type: replace Abstract: We provide sufficient conditions for two subgroups of a hierarchically hyperbolic group to generate an amalgamated free product over their intersection. The result applies in particular to certain geometric subgroups of mapping class groups of finite-type surfaces, th...
https://arxiv.org/abs/2409.03602
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64f32b7dd527f4d7c88499d85a6b80373510f26862e8fff8026c6313dc4d77eb
2026-01-07T00:00:00-05:00
Approximability of deep equilibria
arXiv:2409.06064v4 Announce Type: replace Abstract: We introduce a structural framework for computations involving floating-point operations.Informed by real-valued logic, we introduce deep computations (ultracomputations) and deep iterates, formalizing the ideas of "asymptotic limit" of computations and compositional ...
https://arxiv.org/abs/2409.06064
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7c248f0d93de8813c95220fb13b4e3ee61321954b0b6ae37f1eca201fc4fb3cb
2026-01-07T00:00:00-05:00
The leftmost particle of branching subordinators
arXiv:2409.16617v2 Announce Type: replace Abstract: We define a family of continuous-time branching particle systems on the non-negative real line, called branching subordinators, where particles move as independent subordinators. Each particle can also split (at possibly infinite rate) into several children (possibly ...
https://arxiv.org/abs/2409.16617
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242a97be78bec354d15f4f0cbad6150f5b8e91f064f42a88838081d1ce70f29f
2026-01-07T00:00:00-05:00
Stability of reverse isoperimetric inequalities in the plane: area, Cheeger, and inradius
arXiv:2410.06096v2 Announce Type: replace Abstract: In this paper, we present sharp stability results for various reverse isoperimetric problems in $\mathbb R^2$. Specifically, we prove the stability of the reverse isoperimetric inequality for $\lambda$-convex bodies -- convex bodies with the property that each of thei...
https://arxiv.org/abs/2410.06096
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32c3cccabc520ab1725ab6cd9f5aa0defe81826c423c56a5d57cfb9fab160c27
2026-01-07T00:00:00-05:00
Mapping class group orbit closures for Deroin-Tholozan representations
arXiv:2411.10269v2 Announce Type: replace Abstract: We prove that infinite mapping class group orbits are dense in the character variety of Deroin-Tholozan representations. In other words, the action is minimal except for finite orbits. Our arguments rely on the symplectic structure of the character variety, emphasizin...
https://arxiv.org/abs/2411.10269
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bb6da10529879f1c2d381de10e43aaee948f892a942455893da5e01f78ce7490
2026-01-07T00:00:00-05:00
Information geometric regularization of unidimensional pressureless Euler equations yields global strong solutions
arXiv:2411.15121v2 Announce Type: replace Abstract: Partial differential equations describing compressible fluids are prone to the formation of shock singularities, arising from faster upstream fluid particles catching up to slower, downstream ones. In geometric terms, this causes the deformation map to leave the manif...
https://arxiv.org/abs/2411.15121
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8bc3157e68019d3e414b897dbb37de3ae48a50318a4116a91e3ef53ac08d6d1c
2026-01-07T00:00:00-05:00
Dg-separable dg-extensions
arXiv:2412.06526v2 Announce Type: replace Abstract: We define and characterise completely dg-separable dg-extensions $\varphi:(A,d_A)\rightarrow (B,d_B)$. We completely characterise the case of graded commutative dg-division algebras in characteristic different from $2$. We prove that for a dg-separable extension a sho...
https://arxiv.org/abs/2412.06526
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9a4f2b90f5254fbddecb05848009d85537c7e08b5cfee546682d10c54200c98c
2026-01-07T00:00:00-05:00
Regularity of solutions for fully fractional parabolic equations
arXiv:2502.07530v2 Announce Type: replace Abstract: In this paper, we study the fully fractional heat equation involving the master operator: $$ (\partial_t -\Delta)^{s} u(x,t) = f(x,t)\ \ \mbox{in}\ \mathbb{R}^n\times\mathbb{R} , $$ where $s\in(0,1)$ and $f(x,t) \geq 0$. First we derive H\"{o}lder and Schauder estimat...
https://arxiv.org/abs/2502.07530
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267817652f0af233b32351bdf9a99c040bc16e56c74b7e7b19ba4f6586f5b160
2026-01-07T00:00:00-05:00
Lie algebras of quotient groups
arXiv:2502.10260v2 Announce Type: replace Abstract: We give conditions on a diffeological group $G$ and a normal subgroup $H$ under which the quotient group $G/H$ differentiates to a Lie algebra for which $\operatorname{Lie}(G/H) \cong \operatorname{Lie}(G)/\operatorname{Lie}(H)$. Our Lie functor is instantiated by the...
https://arxiv.org/abs/2502.10260
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be10f49bdc527614d9fbf10db6ef29d9266f799a0a810806f439c2b5881a5708
2026-01-07T00:00:00-05:00
The shift-homological spectrum and parametrising kernels of rank functions
arXiv:2502.11939v2 Announce Type: replace Abstract: For any compactly generated triangulated category we introduce two topological spaces, the shift-spectrum and the shift-homological spectrum. We use them to parametrise a family of thick subcategories of the compact objects, which we call radical. These spaces can be ...
https://arxiv.org/abs/2502.11939
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4c5d6edbf798150030e62cd58a83c7efbfc45ca73cb67de44e0a0c1118c7d23c
2026-01-07T00:00:00-05:00
A Note on the Phragmen-Lindelof Theorem
arXiv:2502.13282v3 Announce Type: replace Abstract: We provide a generalization of the Phragm\'en-Lindel\"of principal of Rademacher with the aim of correcting, or at least provide a pathway to correcting, several errors appearing in the literature.
https://arxiv.org/abs/2502.13282
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09f40396eb81fa3cf1f690c917c669f845de6c21086b0982f285b47f9faed997
2026-01-07T00:00:00-05:00
Characterizations of Tilt-Stable Local Minimizers of a Class of Matrix Optimization Problems
arXiv:2503.03217v3 Announce Type: replace Abstract: Tilt stability plays a pivotal role in understanding how local solutions of an optimization problem respond to small, targeted perturbations of the objective. Although quadratic bundles are a powerful tool for capturing second-order variational behavior, their charact...
https://arxiv.org/abs/2503.03217
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7f50b396c19e4891ffce73b16e49cc39b737114db9be14f0b47bf94e9beafcd9
2026-01-07T00:00:00-05:00
On action rate admissibility criteria
arXiv:2503.03491v5 Announce Type: replace Abstract: We formulate new admissibility criteria for initial value problems motivated by the least action principle. These are applied to a two-dimensional Riemann initial value problem for the isentropic compressible Euler fluid flow. It is shown that the criterion prefers th...
https://arxiv.org/abs/2503.03491
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523eb7a22de60e27aa31c23e91e3d2b04c38a64ffa169df3a3eedc14c79ad2e5
2026-01-07T00:00:00-05:00
The large sieve for square moduli, revisited
arXiv:2503.18009v4 Announce Type: replace Abstract: We revisit the large sieve for square moduli and obtain conditional improvements under hypotheses on higher additive energies of modular square roots.
https://arxiv.org/abs/2503.18009
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5b42100a22b77a92b737fd31ecf34290fdd489c93affc4e9df0750449a126715
2026-01-07T00:00:00-05:00
Secant varieties of Segre-Veronese varieties $\mathbb{P}^m\times\mathbb{P}^n$ embedded by $\mathcal{O}(1,2)$ are non-defective for $n\gg m^3$, $m\geq3$
arXiv:2503.21972v2 Announce Type: replace Abstract: We prove that for any $m\geq3$, $n\gg m^3$, all secant varieties of the Segre-Veronese variety $\mathbb{P}^m\times\mathbb{P}^n$ have the expected dimension. This was already proved by Abo and Brambilla in the subabundant case, hence we focus on the superabundant case....
https://arxiv.org/abs/2503.21972
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3d52dc13786c17e081ecc11c7b37110befe7ac2a9900cd1cea817a964e3a648e
2026-01-07T00:00:00-05:00
Bounded domains on Kobayashi hyperbolic manifolds covering compact complex manifolds
arXiv:2504.03935v2 Announce Type: replace Abstract: The lack of a uniformization theorem in several complex variables leads to a desire to classify all of the simply connected domains. We use established computational methods and a localization technique to generalize a recently-published classification. In particular,...
https://arxiv.org/abs/2504.03935
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26e402afe1314e5945d3545ad2af28fb81f83df0442941bd6f10818fba8998c2
2026-01-07T00:00:00-05:00
Hanf numbers for poset games
arXiv:2504.07317v3 Announce Type: replace Abstract: Given two well partial orders $(P;\leq_P)$ and $(T;\leq_T)$, each with a minimum element, we study the following question: which player has a winning strategy for Chomp on the poset $(P\times T;\leq_{P\times T})$? Here, $(P\times T;\leq_{P\times T})$ denotes the poset...
https://arxiv.org/abs/2504.07317
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daa68e69e7fe7d4cfcababa12f5a9f849867df3065065fdf1f7295ab5433489d
2026-01-07T00:00:00-05:00
On Minimal generating sets of splitting field, Cluster towers and Multiple transitivity of Galois groups
arXiv:2505.00672v3 Announce Type: replace Abstract: A natural generating set for a Galois extension regarded as the splitting field of an irreducible polynomial is introduced and investigated here. Minimal generating sets arising in this context throw many surprises compared to the analogous concept in linear algebra: ...
https://arxiv.org/abs/2505.00672
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7a79ab0ae427fd3f5a39808ead8cf89a543cb4cde814f8b813c6bbe89e0853cc
2026-01-07T00:00:00-05:00
Minimal Simplicial Degree $d$ Maps from Genus $g$ Surfaces to the Torus
arXiv:2505.02386v2 Announce Type: replace Abstract: The degree of a map between orientable manifolds is a fundamental concept in topology, offering deep insights into the structure of the manifolds and the nature of the corresponding maps. This concept has been extensively studied, particularly in the context of simpli...
https://arxiv.org/abs/2505.02386
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9cbfc6bffedc7926f6ba4039690db27b632abf91c9bcb815488875d7690b2a4b
2026-01-07T00:00:00-05:00
Bounded cohomology, quotient extensions, and hierarchical hyperbolicity
arXiv:2505.20462v3 Announce Type: replace Abstract: We call a central extension bounded if its Euler class is represented by a bounded cocycle. We prove that a bounded central extension of a hierarchically hyperbolic group (HHG) is still a HHG; conversely if a central extension is a HHG, then the extension is bounded, ...
https://arxiv.org/abs/2505.20462
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44cb2008414a675c066b519dd2b49eca1a9ae0b56c865213ebf616571ce1b295
2026-01-07T00:00:00-05:00
Frostman and Fourier characterisations of fractal dimensions
arXiv:2505.21217v2 Announce Type: replace Abstract: We examine Frostman-type characterisations and other extremal measure criteria for a range of fractal dimensions of sets. In particular we derive properties of the less familiar modified lower box dimension and upper correlation dimension. We also express a number of ...
https://arxiv.org/abs/2505.21217
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7e16977e1fa01e8720f937c421767945036cbfccbe9f6b4437889d774e8114d3
2026-01-07T00:00:00-05:00
Enumerating log rational curves on some toric varieties
arXiv:2506.13975v3 Announce Type: replace Abstract: The genus 0, fixed-domain log Gromov-Witten invariants of a smooth, projective toric variety X enumerate maps from a general pointed rational curve to a smooth, projective toric variety passing through the maximal number of general points and with prescribed multiplic...
https://arxiv.org/abs/2506.13975
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9e349d69eb8909160f3fa28968a26ac21c84a46001de960082cb2cb3a879a9e5
2026-01-07T00:00:00-05:00
Maximal transitivity of the cactus group on standard Young tableaux
arXiv:2506.16561v2 Announce Type: replace Abstract: The action of the cactus group $C_n$ on Young tableaux of a given shape $\lambda$ goes back to Berenstein and Kirillov and arises naturally in the study of crystal bases and quantum integrable systems. We show that this action is $2$-transitive on standard Young table...
https://arxiv.org/abs/2506.16561
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5f842cb852966689cd1af1af3aefda84fad840055fceac773dbb36b9c5b755b3
2026-01-07T00:00:00-05:00
Non-unique equilibrium measures and freezing phase transitions for matrix cocycles for negative $t$
arXiv:2507.01148v2 Announce Type: replace Abstract: We consider a one-step matrix cocycle generated by a pair of non-negative parabolic matrices and study the equilibrium measures for $t\log \|\mathcal A\|$ as $t$ runs over the reals. We show that there is a freezing first order phase transition at some parameter value...
https://arxiv.org/abs/2507.01148
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e906344e2f17a0dfee4dc142529604523f7d12463b52a108c851ed8b37aa7a2f
2026-01-07T00:00:00-05:00
Matrix Fej\'er-Riesz type theorem for a union of an interval and a point
arXiv:2507.01357v2 Announce Type: replace Abstract: The matrix Fej\'er-Riesz theorem characterizes positive semidefinite matrix polynomials on the real line. In the previous work of the second-named author this was extended to the characterization on arbitrary closed semialgebraic sets $K$ in $\mathbb{R}$ by using matr...
https://arxiv.org/abs/2507.01357
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73d7337c929c572861e2b0cd9098877710707c1843f7b1be56dfceb35c085739
2026-01-07T00:00:00-05:00
Bounded diameter monochromatic component covers
arXiv:2507.05842v2 Announce Type: replace Abstract: Ryser conjectured that every $r$-edge-coloured complete graph can be covered by $r-1$ monochromatic trees. Motivated by a question of Austin in analysis, Mili\'cevi\'c predicted something stronger -- that every $r$-edge-coloured complete graph can be covered by $r-1$ ...
https://arxiv.org/abs/2507.05842
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54345a285064d7ecc98d24e66f2fd3c1ef3d565bc92a3b6240543ee820038d36
2026-01-07T00:00:00-05:00
Classifying Nakayama algebras with a braid group action on $\tau$-exceptional sequences
arXiv:2507.07608v2 Announce Type: replace Abstract: We characterise those basic and connected Nakayama algebras $\Lambda$ for which the mutation of $\tau$-exceptional sequences respects the braid group relations. We show that this is the case if and only if $\Lambda$ is hereditary or all indecomposable projective $\Lam...
https://arxiv.org/abs/2507.07608
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3b77bf5264c8ebc7953b04b3e8a4a9e7b24202e9b6c8377f57cc51876ad5ea8a
2026-01-07T00:00:00-05:00
Donaldson-Thomas invariants of $[\mathbb C^4/\mathbb Z_r]$
arXiv:2507.21582v2 Announce Type: replace Abstract: We compute the zero-dimensional Donaldson-Thomas invariants of the quotient stack $[\mathbb{C}^4/\mathbb{Z}_r]$, confirming a conjecture of Cao-Kool-Monavari. Our main theorem is established through an orbifold analogue of Cao-Zhao-Zhou's degeneration formula combined...
https://arxiv.org/abs/2507.21582
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24fb90617092abd70a26a4662f010a05fda8c0d552c56115de8ff63c9bdb8a8f
2026-01-07T00:00:00-05:00
Strong Feller Regularisation of 1-d Nonlinear Transport by Reflected Ornstein-Uhlenbeck Noise
arXiv:2508.01355v2 Announce Type: replace Abstract: We consider equations of nonlinear transport on the circle with regular self interactions appearing in aggregation models and deterministic mean field dynamics. We introduce a random perturbation of such systems through a stochastic orientation preserving flow, which ...
https://arxiv.org/abs/2508.01355
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32dede0f968f746ba9fb9733718602d5a4564486db7fb7f5e9a96e85429c6d23
2026-01-07T00:00:00-05:00
Joint distribution of Hecke eigenforms on $\mathbb{H}^3$
arXiv:2508.06331v2 Announce Type: replace Abstract: We prove a joint value equidistribution statement for Hecke-Maa{\ss} cusp forms on the hyperbolic three-space $\mathbb{H}^3$. This supports the conjectural statistical independence of orthogonal cusp forms.
https://arxiv.org/abs/2508.06331
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40977c81dc122a95c33a132b08ca334bc331fff85c8a59e851b605b509103fee
2026-01-07T00:00:00-05:00
K-promotion on m-packed labelings of posets
arXiv:2508.09305v2 Announce Type: replace Abstract: Schutzenberger's promotion operator, pro, is a fundamental map in dynamical algebraic combinatorics. At first, its action was mainly considered on standard Young tableaux. But pro was subsequently shown to have interesting properties when applied to natural labelings ...
https://arxiv.org/abs/2508.09305
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0f0f59b7c6640d231dc6dea024eaadadf6cd6aecce4b9ee30d0fffe6f255366b
2026-01-07T00:00:00-05:00
On a Grassmann odd analogue of Carrollian Manifolds
arXiv:2508.14240v3 Announce Type: replace Abstract: We define a Grassmann odd analogue of a Carrollian manifold as a supermanifold of dimension $n|1$ with an even degenerate metric such that the kernel is generated by a non-singular odd vector field that is a supersymmetry generator. Alongside other results, we establi...
https://arxiv.org/abs/2508.14240
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70ddd53305e5a300ad6af2e170fadd72b0fbc32e5efbd74ef4ff7384ddd01eaa
2026-01-07T00:00:00-05:00
Mutations of quivers with 2-cycles
arXiv:2508.15022v2 Announce Type: replace Abstract: We develop a mutation theory for quivers with oriented 2-cycles using a structure called a homotopy, defined as a normal subgroupoid of the quiver's fundamental groupoid. This framework extends Fomin-Zelevinsky mutations of 2-acyclic quivers and yields involutive muta...
https://arxiv.org/abs/2508.15022
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4af3d762162acc56320f815450faa94d8192f8df525d1ea0621fa15192b81ac2
2026-01-07T00:00:00-05:00
Symmetric Poisson geometry, totally geodesic foliations and Jacobi-Jordan algebras
arXiv:2508.15890v3 Announce Type: replace Abstract: We introduce symmetric Poisson structures as pairs consisting of a symmetric bivector field and a torsion-free connection satisfying an integrability condition analogous to that in usual Poisson geometry. Equivalent conditions in Poisson geometry have inequivalent ana...
https://arxiv.org/abs/2508.15890
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f2bc9eb25ada5f4a7f273241b6a0ab61b4a3b4992d9583889bd1e0b8134ced33
2026-01-07T00:00:00-05:00
Minimal ${A}_{\infty}$-algebras of endomorphisms: The case of $d\mathbb{Z}$-cluster tilting objects
arXiv:2508.18852v2 Announce Type: replace Abstract: The Derived Auslander--Iyama Corresponence, a recent result of the authors, provides a classification up to quasi-isomorphism of the derived endomorphism algebras of basic $d\mathbb{Z}$-cluster tilting objects in $\operatorname{Hom}$-finite algebraic triangulated cate...
https://arxiv.org/abs/2508.18852
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b057c2b4f230750c23700d6fa2a4c695af8afcb97b146b71519bb914499a52ff
2026-01-07T00:00:00-05:00
Lipschitz-free spaces and Bossard's reduction argument
arXiv:2509.00722v2 Announce Type: replace Abstract: We set up a descriptive set-theoretic framework to study Lipschitz-free spaces and use the reduction argument of Bossard to prove several results. We prove two universality results: if a separable Banach space is isomorphically universal for the class of Lipschitz-fre...
https://arxiv.org/abs/2509.00722
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da2103a0e9730732aad94231a4d2b1ba5a2e41acb45f51994928172afa4e2473
2026-01-07T00:00:00-05:00
Global existence of the irrotational Euler-Nordstr\"om equations with a positive cosmological constant: The gravitational field equation
arXiv:2509.02023v4 Announce Type: replace Abstract: Our aim is to establish the global existence of classical solutions to the nonlinear irrotational Euler--Nordstr\"om system, which incorporates a linear equation of state and a cosmological constant. In this setting, gravitation is described by a single scalar field s...
https://arxiv.org/abs/2509.02023
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01c1e9c6a8534335c6f948a9939a778042abf3906048704fbff9616e6dc72680
2026-01-07T00:00:00-05:00
Concentration Inequalities for Branching Random Walk
arXiv:2509.05860v2 Announce Type: replace Abstract: While classical concentration inequalities are typically restricted to two special cases -- independence and martingale difference sequences -- we extend concentration inequalities to a much broader class of stochastic processes by relaxing these foundational conditio...
https://arxiv.org/abs/2509.05860
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1919851ce01006dd4e39ce8e2655bf1f554a72181845fbff15729c33f92ef209
2026-01-07T00:00:00-05:00
Quantization of bounded symplectic domains associated with compact Lie groups
arXiv:2509.05931v2 Announce Type: replace Abstract: We present a systematic quantization scheme for bounded symplectic domains of the form $D \times G \subset T^\ast G$, where $D \subset \mathfrak{g}^\ast$ is a bounded region defined by algebraic inequalities and $G$ is a compact Lie group with Lie algebra $\mathfrak{g...
https://arxiv.org/abs/2509.05931
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8e750d93e50dddee6241278e56b634b5ea24196ffcfa24a0d8886b8a6426582a
2026-01-07T00:00:00-05:00
K-theoretic Hikita conjecture for quiver gauge theories
arXiv:2509.06226v2 Announce Type: replace Abstract: We study variants of Hikita conjecture for Nakajima quiver varieties and corresponding Coulomb branches. First, we derive the equivariant version of the conjecture from the non-equivariant one for a set of gauge theories. Second, we suggest a variant of the conjecture...
https://arxiv.org/abs/2509.06226
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2e57e4a45969a9b9f3ddc7d704034d41751c441e6747cc2bba80cc5778c331fc
2026-01-07T00:00:00-05:00
$HS$-tensional maps and $HM$-tensional maps
arXiv:2509.08564v2 Announce Type: replace Abstract: Let $\psi: (M,g)\longrightarrow (N,h)$ be a smooth map between Riemannian manifolds. The tension field of $\psi$ can be regarded as a map from $(M,g)$ into the Riemannian vector bundle $\psi^{-1}TN$, equipped with the Sasaki metric $G_{S}$. In this paper, we study cer...
https://arxiv.org/abs/2509.08564
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5cff0179772a1d1ad3fa450aca61b1b73f1f47c85263ffc7c67a621ff3a53a1e
2026-01-07T00:00:00-05:00
Augmentations, reduced ideal point gluings and compact type degenerations of curves
arXiv:2509.12429v2 Announce Type: replace Abstract: In this note we demonstrate some unexpected properties that simple gluings of the simplest derived categories may have. We consider two special cases: the first is an augmented curve, i.e., the gluing of the derived categories of a point and a curve with the gluing bi...
https://arxiv.org/abs/2509.12429
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6100280458bc9df90903e4b19f9f50baea8c8f27d79780ee405b241aadb6f65c
2026-01-07T00:00:00-05:00
The Complexity of Arc-Connectedness Relation in the Plane
arXiv:2509.24596v2 Announce Type: replace Abstract: In this paper, we show that the arc-connectedness equivalence relation on a Polish subspace of the real plane is an essentially hyperfinite Borel equivalence relation. This result provides the optimal upper bound for such a Borel equivalence relation.
https://arxiv.org/abs/2509.24596
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c9f3b8fcce9bd6fc34de6ebde589339783c6fa80ba8fdb2d78f4facb11520e76
2026-01-07T00:00:00-05:00
Impact of memory on clustering in spontaneous particle aggregation
arXiv:2510.15335v2 Announce Type: replace Abstract: The effect of short-term and long-term memory on spontaneous aggregation of organisms is investigated using a stochastic agent-based model. Each individual modulates the amplitude of its random motion according to the perceived local density of neighbors. Memory is in...
https://arxiv.org/abs/2510.15335
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4adcb2af839612dca6f7f316906c90940b2eb91e494bd07239bc7eba93d1e84c
2026-01-07T00:00:00-05:00
A Linear Representation for Functions on Finite Sets
arXiv:2510.20167v5 Announce Type: replace Abstract: We demonstrate that any function $f$ from a finite set $Y$ to itself can be represented linearly. Specifically, we prove the existence of an injective map $j$ from $Y$ into a modular ring $\mathbb{Z}/m\mathbb{Z}$ and a constant $a \in \mathbb{Z}/m\mathbb{Z}$ such that...
https://arxiv.org/abs/2510.20167
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8db1b59dd8ee4695890381939f55bcf726f873853696504c69f7abe5823e42a8
2026-01-07T00:00:00-05:00
Heterochromatic two-arm probabilities for metric graph Gaussian free fields
arXiv:2510.20492v2 Announce Type: replace Abstract: For the Gaussian free field on the metric graph of $\mathbb{Z}^d$ ($d\ge 3$), we consider the heterochromatic two-arm probability, i.e., the probability that two points $v$ and $v'$ are contained in distinct clusters of opposite signs with diameter at least $N$. For a...
https://arxiv.org/abs/2510.20492
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017c86601974026c78a59bf08e6c4cffae86dd7068441b8576b171a8579550c2
2026-01-07T00:00:00-05:00
Separation and cut edge in macroscopic clusters for metric graph Gaussian free fields
arXiv:2510.20516v2 Announce Type: replace Abstract: We prove that for the Gaussian free field (GFF) on the metric graph of $\mathbb{Z}^d$ (for all $d\ge 3$ except the critical dimension $d_c=6$), with uniformly positive probability there exist two distinct sign clusters of diameter at least $cN$ within a box of size $N...
https://arxiv.org/abs/2510.20516
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23b6fa82ad07a4237cfaa3be217448ccf96d9e7bbd383fe82a205419ea41c9fb
2026-01-07T00:00:00-05:00
On the gap between cluster dimensions of loop soups on $\mathbb{R}^3$ and the metric graph of $\mathbb{Z}^3$
arXiv:2510.20526v2 Announce Type: replace Abstract: The question of understanding the scaling limit of metric graph critical loop soup clusters and its relation to loop soups in the continuum appears to be one of the subtle cases that reveal interesting new scenarios about scaling limits, with a mixture of macroscopic ...
https://arxiv.org/abs/2510.20526
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a0a3498710275f703a6ddb303008267f3c3662afce0e606cc59893db9ec6a369
2026-01-07T00:00:00-05:00
The power of trees
arXiv:2510.26419v2 Announce Type: replace Abstract: We give two consistent constructions of trees $T$ whose finite power $T^{n+1}$ is sharply different from $T^n$: 1. An $\aleph_1$-tree $T$ whose interval topology $X_T$ is perfectly normal, but $(X_T)^2$ is not even countably metacompact. 2. For an inaccessible $\kappa...
https://arxiv.org/abs/2510.26419
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31a74710a24bb498af81298306caa0f29b23d51a1d916b0481887295c18613d9
2026-01-07T00:00:00-05:00
Arithmetic Properties of Several Generalized-Constant Sequences, with Implications for $\Gamma^{\left(n\right)}\left(1\right)$
arXiv:2511.01849v4 Announce Type: replace Abstract: Neither the Euler-Mascheroni constant, $\gamma=0.577215...$, nor the Euler-Gompertz constant, $\delta=0.596347...$, is currently known to be irrational. However, it has been proved that at least one of them is transcendental. The two constants are related by a well-kn...
https://arxiv.org/abs/2511.01849
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36591f1ad2b508f1db56bae235f57e010602e606fa921a03ff90aca05601b983
2026-01-07T00:00:00-05:00
Completeness conditions for spacetimes with low-regularity metrics
arXiv:2511.07867v2 Announce Type: replace Abstract: We extend Beem's three completeness notions -- finite compactness, timelike Cauchy completeness, and Condition A -- originally defined for spacetimes, to Lorentzian length spaces and study their relationships. We prove that finite compactness implies timelike Cauchy c...
https://arxiv.org/abs/2511.07867
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db98b8cea3bec52421fb16b6b94600806a356b26fb68fdbeb9829a260ea9ac2d
2026-01-07T00:00:00-05:00
Weak optimal transport with moment constraints: constraint qualification, dual attainment and entropic regularization
arXiv:2511.16211v2 Announce Type: replace Abstract: We consider weak optimal problems (possibly entropically penalized) incorporating both soft and hard (including the case of the martingale condition) moment constraints. Even in the special case of the martingale optimal transport problem, existence of Lagrange multip...
https://arxiv.org/abs/2511.16211
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8efcf4248bdbe11edc854c73543e52391b1e50ab51b9e13d75ea47de684d9671
2026-01-07T00:00:00-05:00
Constancy of an Infinite Cyclotomic Product via Ramanujan Sums
arXiv:2511.16975v2 Announce Type: replace Abstract: We show that the infinite product defined by \[ P(z) = -\prod_{n=1}^{\infty} (\Phi_n(z))^{-1/n}, \] where \( \Phi_n(z) \) is the \( n \)-th cyclotomic polynomial, is constant inside the unit disk. The proof translates a result of Ramanujan on Ramanujan sums, equivalen...
https://arxiv.org/abs/2511.16975
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17e8d4e3b4ed0785856d66e8be318fd5cdc39b14af9f554493c5b9fbdbc7ba99
2026-01-07T00:00:00-05:00
Boundary regularity and a priori estimates for fractional equations on unbounded domains
arXiv:2511.17325v2 Announce Type: replace Abstract: In this paper, we study the boundary H\"older regularity for solutions to the fractional Dirichlet problem in unbounded domains with boundary \begin{equation*} \begin{cases} (-\Delta)^s u(x) = g(x),&\text{in } \Omega, u(x)=0, &\text{in } \Omega^c. \end{cases} \end{equ...
https://arxiv.org/abs/2511.17325
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c802a2ac566453d587de87c2cc7014c4a1b6be66bdc7d4efffd4e3d13b98b86e
2026-01-07T00:00:00-05:00
More on the sum-product problem for integers with few prime factors
arXiv:2512.04931v2 Announce Type: replace Abstract: We show that if $A\subset \mathbb{Z}$ is a finite set of integers in which every integer is divisible by $O(1)$ many primes then \[\max(\lvert A+A\rvert,\lvert AA\rvert) \geq \lvert A\rvert^{12/7-o(1)}\] and, for any $m\geq 2$, \[\max(\lvert mA\rvert, \lvert A^{(m)}\r...
https://arxiv.org/abs/2512.04931
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67b3d08608605eddb3c39ab0a0b0840091d1a78c0a05888b2d57296f79989a0a
2026-01-07T00:00:00-05:00
Singularity of the loops within a cable-graph loop-soup conditioned by its occupation time
arXiv:2512.05086v2 Announce Type: replace Abstract: In this note, we show the following feature of the relation between Brownian loop-soups on cable-graphs and their total occupation time-field $\Lambda$: When conditioned on $\Lambda$, the conditional law of individual loops becomes singular with respect to that of unc...
https://arxiv.org/abs/2512.05086
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2dac483a32c9f34940d3c697b4fc28bff4a806b0cdaaa2124dfd68f563b5eeef
2026-01-07T00:00:00-05:00
Critical behaviour of the fully packed loop-$O(n)$ model on planar triangulations
arXiv:2512.05867v2 Announce Type: replace Abstract: We study the fully packed loop-$O(n)$ model on planar triangulations. This model is also bijectively equivalent to the Fortuin--Kasteleyn model of planar maps with parameter $q\in (0,4)$ at its self-dual point. These have been traditionally studied using either techni...
https://arxiv.org/abs/2512.05867
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25bc565f681d6aab8abf01b5bc394bad6d1fcef49f48dd1b7e072248b5c74b94
2026-01-07T00:00:00-05:00
Low-degree mod 2 cohomology of classifying spaces of $G_2$-gauge groups
arXiv:2512.12195v2 Announce Type: replace Abstract: Let $G$ be a simply connected compact simple Lie group and let $\mathcal{G}_k$ denote the gauge group of a principal $G$--bundle over $S^4$ with second Chern class $k\in \pi_4(BG)\cong \mathbb Z$. For $G=G_2$, the $p$--local homotopy types of the gauge groups have bee...
https://arxiv.org/abs/2512.12195
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2b58382cc23672e899380aa52018b2dd8f23f931349e16f57663d88c0eb9c136
2026-01-07T00:00:00-05:00
Determining subgroups via stationary measures
arXiv:2512.12966v2 Announce Type: replace Abstract: In this paper, we consider random walks on the isometry groups of general metric spaces. Under some mild conditions, we show that if two non-elementary random walks on a discrete subgroup of the isometry group have non-singular stationary measures, then subgroups gene...
https://arxiv.org/abs/2512.12966
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4ae1a91aecb7725ffd96834bf35078b4866304679f6a90fecd661d889bc5fefd
2026-01-07T00:00:00-05:00
Asymptotics of the graph Laplace operator near an isolated singularity
arXiv:2512.13314v3 Announce Type: replace Abstract: In this paper, we investigate asymptotics of the continuous graph Laplace operator on a smooth Riemannian manifold $(M,g)$ admitting an isolated singularity $x$. We show that if the curvature function $\kappa$ doesn't grow too fast near $x$, then the graph Laplace ope...
https://arxiv.org/abs/2512.13314
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7d921d3d03f8c1136a66d534704722a1b7f2d9503648da9077bf18eb8d12ab9d
2026-01-07T00:00:00-05:00
Graph Sensitivity under Join and Decomposition
arXiv:2512.19915v2 Announce Type: replace Abstract: The sensitivity, $\sigma(G)$, of a finite undirected simple graph $G$ is the smallest maximum degree of an induced subgraph on more than the maximum number of independent vertices. Call an indexed family of graphs $G_n$ with maximum degree $\Delta(G_n) \to \infty$ as ...
https://arxiv.org/abs/2512.19915
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968c6a6e2cc9553971fe4b1d532c40a45a63e5dfce8017590aa680b23f30edb3
2026-01-07T00:00:00-05:00
Regularization methods for solving hierarchical variational inequalities with complexity guarantees
arXiv:2512.20772v2 Announce Type: replace Abstract: We consider hierarchical variational inequality problems, or more generally, variational inequalities defined over the set of zeros of a monotone operator. This framework includes convex optimization over equilibrium constraints and equilibrium selection problems. In ...
https://arxiv.org/abs/2512.20772
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96f87c9ba338ebe4350b0eb89d12dc6b8af776ce1b39da34aeed53b16d04ee70
2026-01-07T00:00:00-05:00
Trisections and Lefschetz fibrations with $(-n)$-sections
arXiv:2512.21001v2 Announce Type: replace Abstract: Castro and Ozbagci constructed a trisection of a closed 4-manifold admitting a Lefschetz fibration with a $(-1)$-section such that the corresponding trisection diagram can be explicitly constructed from a monodromy of the Lefschetz fibration. In this paper, for a clos...
https://arxiv.org/abs/2512.21001
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d6097e9e493669d079bef6b65f7f8f54b7cab3c7121b9faab3193a3e56acf90c
2026-01-07T00:00:00-05:00
Non-finite generatedness of the congruences defined by tropical varieties
arXiv:2512.21565v2 Announce Type: replace Abstract: In tropical geometry, there are several important classes of ideals and congruences such as tropical ideals, bend congruences, and the congruences of the form $\mathbf E(Z)$. Although they are analogues of the concept of ideals of rings, it is not well known whether t...
https://arxiv.org/abs/2512.21565
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9ab58c0d95d59dba2ba026dd3b60d96f294a865990c409853ac87f7257d63083
2026-01-07T00:00:00-05:00
MSO logic of the real order with the set quantifier ranging over Borel sets
arXiv:2512.23003v3 Announce Type: replace Abstract: A celebrated 1969 theorem of Michael Rabin is that the MSO theory of the real order where the monadic quantifier is allowed only to range over the sets of rational numbers, is decidable. In 1975 Saharon Shelah proved that if the monadic quantifier is allowed to range ...
https://arxiv.org/abs/2512.23003
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4bc30543c81c2c5808310012c417526031844d245b18a32e249393e1c9b3997c
2026-01-07T00:00:00-05:00
Structure preservation and emergent dissipation in stochastic wave equations with transport noise
arXiv:2512.23309v2 Announce Type: replace Abstract: We study nonlinear wave equations perturbed by transport noise acting either on the displacement or on the velocity. Such noise models random advection and, under suitable scaling of space covariance, may generate an effective dissipative term. We establish well-posed...
https://arxiv.org/abs/2512.23309
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2f95f08c951e7d123288bac3d4f5e3e05c6e4bbb642b1db2abf6ffe641bda8f3
2026-01-07T00:00:00-05:00
The Lagrangian and symplectic structures of the Kuramoto oscillator model
arXiv:2601.00113v2 Announce Type: replace Abstract: Despite being under intense scrutiny for 50 years, the Kuramoto oscillator model has remained a quintessential representative of non-equilibrium phase transitions. One of the reasons for its enduring relevance is the apparent lack of an optimization formulation, due t...
https://arxiv.org/abs/2601.00113
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0f859699c91211260041e4250f1102683b7b43116747081f052dea3a5dd38721
2026-01-07T00:00:00-05:00
Bilinear forms with Kloosterman fractions and applications
arXiv:2601.00292v2 Announce Type: replace Abstract: We establish improved bounds for bilinear forms with Kloosterman fractions of the form ${\sum\sum}_{m,n} \alpha_m \beta_n e(a\overline{m}/(bn))$ with $M< n \le 2N$ and $(m,n)=1$. Our approach works directly with arbitrary coefficient sequences $(\alpha_m), (\beta_n) \...
https://arxiv.org/abs/2601.00292
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9e3b4d790b01808115a54b0cd7087d463ca5f50b92792ccd24db4099d936caa0
2026-01-07T00:00:00-05:00
Hadamard-type formulas for real eigenvalues of canonically symplectic operators
arXiv:2601.00520v2 Announce Type: replace Abstract: We give first-order asymptotic expansions for the resolvent and Hadamard-type formulas for the eigenvalue curves of one-parameter families of canonically symplectic operators. We allow for parameter dependence in the boundary conditions, bounded perturbations and trac...
https://arxiv.org/abs/2601.00520
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927a748509a27d377b40b96896a1dcc1838698cf7f12b36bef48c06482192204
2026-01-07T00:00:00-05:00
Study of Composition Operators in Certain Functional Spaces
arXiv:2601.00801v2 Announce Type: replace Abstract: In this thesis we study three problems. The first is the superposition of the operators and their proprities, such as boundedness,continuity,regularity and the inequalities of the norms of the composition of functions in some functional spaces. The second is to genera...
https://arxiv.org/abs/2601.00801
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3403e4e7ab2790e0769c4d757afdfa7d3d7e1078c9d70043bb0cc3bc41bd2b2d
2026-01-07T00:00:00-05:00
The Maximum of the Volume of a Part of a Cevian Simplex
arXiv:2601.00876v2 Announce Type: replace Abstract: The cevians passing through a point in a simplex create a cevian simplex, which is divided by these cevians into smaller simplices. We consider the problem about the maximum of the ratio of the sum of the volumes of some of these smaller simplices by the volume of the...
https://arxiv.org/abs/2601.00876
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dd715d14eb088e40151f43911cbeebb61a82972c303459b9da58efe6535d2e4d
2026-01-07T00:00:00-05:00
On the universal curve with unordered marked points in positive characteristic
arXiv:2601.01336v2 Announce Type: replace Abstract: We study the relative pro-$\ell$ and continuous relative completions of the algebraic fundamental groups of universal curves over the moduli stack of curves with unordered marked points in positive characteristic. Using specialization and homotopy exact sequences, we ...
https://arxiv.org/abs/2601.01336
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7acffe08cf7847f779d94daf965bd43ab05e432c646063040fb7507d1f1e0de0
2026-01-07T00:00:00-05:00
Iterating PP-packages without Choice: A Cohen symmetric seed and a localization framework
arXiv:2601.01855v2 Announce Type: replace Abstract: The Partition Principle $\mathsf{PP}$ asserts that whenever there is a surjection $A\twoheadrightarrow B$, there is an injection $B\hookrightarrow A$. Russell conjectured in 1906 that $\mathsf{PP}$ is equivalent to the Axiom of Choice $\mathsf{AC}$; while $\mathsf{AC}...
https://arxiv.org/abs/2601.01855
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1c9ffa91d7bac26f160ac23fa2c69f155d37ab58f3eab1ac1f3634b560f57079
2026-01-07T00:00:00-05:00
A Perturbed DCA for Computing d-Stationary Points of Nonsmooth DC Programs
arXiv:2601.02084v2 Announce Type: replace Abstract: This paper introduces an efficient perturbed difference-of-convex algorithm (pDCA) for computing d-stationary points of an important class of structured nonsmooth difference-of-convex problems. Compared to the principal algorithms introduced in [J.-S. Pang, M. Razaviy...
https://arxiv.org/abs/2601.02084
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afe53a696e4e8a469f34f3a886e66f2b7d14b08dccb14c815dff074fd0f80b1f
2026-01-07T00:00:00-05:00
Square integrability of regular representations on reductive homogeneous spaces
arXiv:2601.02188v2 Announce Type: replace Abstract: Let $G$ be a real reductive Lie group and $H$ a reductive subgroup of $G$. Benoist-Kobayashi studied when $L^2(G/H)$ is a tempered representation of $G$ and in particular they gave a necessary and sufficient condition for the temperedness in terms of certain functions...
https://arxiv.org/abs/2601.02188
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ab0cd21ad003cfa7cbd15306a8dee26c71d774cfafe421e1ce86cdd2ccf4ec67
2026-01-07T00:00:00-05:00
Integrable systems on multiplicative quiver varieties from cyclic quivers
arXiv:2108.02496v3 Announce Type: replace-cross Abstract: We consider a class of complex manifolds constructed as multiplicative quiver varieties associated with a cyclic quiver extended by an arbitrary number of arrows starting at a new vertex. Such varieties admit a Poisson structure, which is obtained by quasi-Hamil...
https://arxiv.org/abs/2108.02496
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77c06da0edae26a6f5232d5913fc236999a8ad78f998dc5fbb764e465888bfd9
2026-01-07T00:00:00-05:00
Using prior information to boost power in correlation structure support recovery
arXiv:2111.11278v2 Announce Type: replace-cross Abstract: Hypothesis testing of structure in correlation and covariance matrices is of broad interest in many application areas. In high dimensions and/or small to moderate sample sizes, high error rates in testing is a substantial concern. This article focuses on increas...
https://arxiv.org/abs/2111.11278
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070725a79b0b9eeeb1b271d3a4a355f309570692aa3232fc65f1c5aac276debd
2026-01-07T00:00:00-05:00
On the Structure of Wave Functions in Complex Chern-Simons Theory
arXiv:2312.00624v2 Announce Type: replace-cross Abstract: We study the structure of wave functions in complex Chern-Simons theory on the complement of a hyperbolic knot, emphasizing the similarities with the topological string/spectral theory correspondence. We first conjecture a hidden integrality structure in the hol...
https://arxiv.org/abs/2312.00624
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6f8fa73484b7c87c18f41b7eead68f0e2da616496752a0aa0923c48283499ed2
2026-01-07T00:00:00-05:00
Semiparametric fiducial inference for Cox models
arXiv:2404.18779v2 Announce Type: replace-cross Abstract: R. A. Fisher introduced the concept of fiducial as a potential replacement for the Bayesian posterior distribution in the 1930s. During the past century, fiducial approaches have been explored in various parametric and nonparametric settings. However, to the bes...
https://arxiv.org/abs/2404.18779
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4efbf64cac263173b76e771473ba19c1d773af2bccc8bc144854ebaf91e12510
2026-01-07T00:00:00-05:00
Bell-CHSH inequality and unitary transformations in Quantum Field Theory
arXiv:2412.03840v3 Announce Type: replace-cross Abstract: Unitary transformations are employed to enhance the violations of the Bell-CHSH inequality in relativistic Quantum Field Theory. The case of the scalar field in $1+1$ Minkowski space-time is scrutinized by relying on the Tomita-Takesaki modular theory. The examp...
https://arxiv.org/abs/2412.03840
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e2be221752c2d7ba6af7c943991f8092083e09900a13f31f06ac5d830608af79
2026-01-07T00:00:00-05:00
Robust Quantum Control for Bragg Pulse Design in Atom Interferometry
arXiv:2502.04618v3 Announce Type: replace-cross Abstract: We formulate a robust optimal control algorithm to synthesize minimum energy pulses that can transfer a cold atom system into various momentum states. The algorithm uses adaptive linearization of the evolution operator and sequential quadratic programming to ite...
https://arxiv.org/abs/2502.04618
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939f58aa5056ca5175e31f4c8db395e1457fcb09117d7d991e66ab794bb8646e
2026-01-07T00:00:00-05:00
Shift orbifolds, decompactification limits, and lattices
arXiv:2502.18453v2 Announce Type: replace-cross Abstract: We describe the general shift orbifold of a Narain CFT and use this to investigate decompactification limits in the heterotic Narain moduli space. We also comment on higher rank theories and describe some applications to the CFT based on the Leech lattice and it...
https://arxiv.org/abs/2502.18453
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4c08dce512be047038916cb9b08dd5697106c9fb3df7ac531ce1af7a3b70f28d
2026-01-07T00:00:00-05:00
Toward a Complexity Classification of High-Temperature Bosons: Computational Tractability and Power-Law Clustering
arXiv:2509.25572v2 Announce Type: replace-cross Abstract: Determining when quantum many-body systems admit simple, efficiently simulable structure is a central problem. High-temperature thermal states are a natural candidate for such simplicity, yet for bosons, the unbounded local Hilbert space and energy invalidate th...
https://arxiv.org/abs/2509.25572
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66af70461a653db28c2c456955bbb6e1aefe8a1b28e926cb9625a49bd94191da
2026-01-07T00:00:00-05:00
A new super integrable hierarchy and a generalized super-AKNS hierarchy
arXiv:2509.25995v2 Announce Type: replace-cross Abstract: In this paper, we investigate a non-isospectral problem on the loop algebra of the Lie superalgebra osp(1,6), and construct an super integrable system using the supertrace identity. The resulting super integrable system can be reduced to the super-AKNS hierarchy...
https://arxiv.org/abs/2509.25995
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4f77b41d0fcd3bb9fb39910493a4f668337147e147bc7f8692896ff8a11362bb
2026-01-07T00:00:00-05:00
Exact State Evolution and Energy Spectrum in Solvable Bosonic Models
arXiv:2510.20046v2 Announce Type: replace-cross Abstract: Solvable bosonic models provide a fundamental framework for describing light propagation in nonlinear media, including optical down-conversion processes that generate squeezed states of light and their higher-order generalizations. In quantum optics a central ob...
https://arxiv.org/abs/2510.20046
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042b20960ae63d1e91f2191f3a2514e9444f851211696e944038d120dc2068de
2026-01-07T00:00:00-05:00
Boundary-driven quantum systems near the Zeno limit: steady states and long-time behavior
arXiv:2512.12825v2 Announce Type: replace-cross Abstract: We study composite open quantum systems with a finite-dimensional state space ${\mathcal H}_A\otimes {\mathcal H}_B$ governed by a Lindblad equation $\rho'(t) = {\mathcal L}_\gamma \rho(t)$ where ${\mathcal L}_\gamma\rho = -i[H,\rho] + \gamma {\mathcal D} \rho$,...
https://arxiv.org/abs/2512.12825
Academic Papers
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fdd9fbc00290319359f60896fa68dfb5e19892f729deb1aa73e4204de4c02112
2026-01-07T00:00:00-05:00
When Indemnity Insurance Fails: Parametric Coverage under Binding Budget and Risk Constraints
arXiv:2512.21973v2 Announce Type: replace-cross Abstract: In high-risk environments, traditional indemnity insurance is often unaffordable or ineffective, despite its well-known optimality under expected utility. We compare excess-of-loss indemnity insurance with parametric insurance within a common mean-variance frame...
https://arxiv.org/abs/2512.21973
Academic Papers
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594f29c02323815e5bccca21f5874a25c008cd1b0a962ffbb3aae41de5521bc7
2026-01-07T00:00:00-05:00
Exact inference via quasi-conjugacy in two-parameter Poisson-Dirichlet hidden Markov models
arXiv:2512.22098v2 Announce Type: replace-cross Abstract: We introduce a nonparametric model for time-evolving, unobserved probability distributions from discrete-time data consisting of unlabelled partitions. The latent process is a two-parameter Poisson-Dirichlet diffusion, and observations arise via exchangeable sam...
https://arxiv.org/abs/2512.22098
Academic Papers
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106658b423ef947ff93fdd47c6d66d2a578326ac9aa89a908408c1ee7c991359
2026-01-07T00:00:00-05:00
A Novel Multiple Imputation Approach For Parameter Estimation in Observation-Driven Time Series Models With Missing Data
arXiv:2601.01259v2 Announce Type: replace-cross Abstract: Handling missing data in time series is a complex problem due to the presence of temporal dependence. General-purpose imputation methods, while widely used, often distort key statistical properties of the data, such as variance and dependence structure, leading ...
https://arxiv.org/abs/2601.01259
Academic Papers
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6dd476ed14c17543f5fb5a01e25ae7232540c61f0e2ddaf125128508c6b12eca
2026-01-07T00:00:00-05:00
Predictability of bursts of a recurrent nova using topological data analysis and machine learning
arXiv:2601.02403v1 Announce Type: new Abstract: RS Oph is a recurrent nova, a kind of cataclismic variable that shows bursts in a period approximately shorter than a century. Persistent homology, a technique from topological data analysis, studies the evolution of topological features of a simplicial complex composed o...
https://arxiv.org/abs/2601.02403
Academic Papers
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cb318910849980e5e9f9f881c66990e38ac62dee5e0979f612740054bcfc0edf
2026-01-07T00:00:00-05:00
Exactly solved model of a one dimensional self gravitating system
arXiv:2601.02423v1 Announce Type: new Abstract: A model one-dimensional self consistent steady state collisionless self-gravitating system in which all the particles have the same energy is presented. This has the remarkable property that the position and velocity of the particles orbiting in their own self consistent ...
https://arxiv.org/abs/2601.02423
Academic Papers
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8e85dbea1bff1db06d3ec656da17c35c66ccb27b33127536182184032eed3fdb
2026-01-07T00:00:00-05:00
Experiments in binary evolution
arXiv:2601.02448v1 Announce Type: new Abstract: The majority of stars more massive than the Sun is found in binary or multiple star systems and many of them will interact during their evolution. Specific interactions, where progenitors and post-mass transfer (MT) systems are clearly linked, can provide yet missing obse...
https://arxiv.org/abs/2601.02448
Academic Papers
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80e72f0b1648f065678b8d938a7b051175b2e2e15005958155a7b0cb1ba34cd7
2026-01-07T00:00:00-05:00
Validation of Satellite Lifetime Predictions at Leonid Space
arXiv:2601.02453v1 Announce Type: new Abstract: We validate Leonid Space's satellite lifetime prediction pipeline through comprehensive backtesting against 934 non-maneuvering satellites that deorbited from LEO between 1961 and 2024. This represents the first large-scale validation of lifetime prediction tooling using ...
https://arxiv.org/abs/2601.02453
Academic Papers
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