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we consider a rather special class of translation surfaces ( called m - origamis in this work ) that are obtained from dessins by a construction introduced by martin m \ " oller. we give a new proof with a more combinatorial flavour of m \ " oller ' s theorem that $ \ mathrm { gal } ( \ overline { \ mathbb { q } } / \ ... | arxiv:1408.6769 |
background. the excess mortality rate in aotearoa new zealand during the covid - 19 pandemic is frequently estimated to be among the lowest in the world. however, to facilitate international comparisons, many of the methods that have been used to estimate excess mortality do not use age - stratified data on deaths and ... | arxiv:2412.08927 |
we have measured the x - ray absorption ( xas ) and x - ray magnetic circular dichroism ( xmcd ) at the mn l3, 2 edges in ferromagnetic ga1 - xmnxp films for 0. 018 < x < 0. 042. large xmcd asymmetries at the l3 edge indicate significant spin - polarization of the density of states at the fermi energy. the spectral sha... | arxiv:cond-mat/0607393 |
we report the application of evaporative cooling to clouds of trapped antiprotons, resulting in plasmas with measured temperature as low as 9 ~ k. we have modeled the evaporation process for charged particles using appropriate rate equations. good agreement between experiment and theory is observed, permitting predicti... | arxiv:1009.4687 |
we propose an algorithm for tracing polylines on a triangle mesh such that : they are aligned with a n - symmetry direction field, and two such polylines cannot cross or merge. this property is fundamental for mesh segmentation and is very difficult to enforce with numerical integration of vector fields. we propose an ... | arxiv:1306.0706 |
sequential change point tests aim at giving an alarm as soon as possible after a structural break occurs while controlling the asymptotic false alarm error. for such tests it is of particular importance to understand how quickly a break is detected. while this is often assessed by simulations only, in this paper, we de... | arxiv:2003.08847 |
dynamic full - field optical coherence tomography ( dffoct ) has recently emerged as an invaluable label - free microscopy technique, owing to its sensitivity to cell activity, as well as speed and sectioning ability. however, the quality of dffoct images are often degraded due to phase noise and fringe artifacts. in t... | arxiv:2501.08359 |
monte carlo techniques are used to investigate the equilibrium threshold concentration, xe, in the dilute anisotropic antiferromagnet fe ( x ) zn ( 1 - x ) f2 in an applied magnetic field, considered to be an ideal random - field ising model system. above xe equilibrium behavior is observed whereas below xe metastabili... | arxiv:cond-mat/0009049 |
online free - viewpoint video ( fvv ) streaming is a challenging problem, which is relatively under - explored. it requires incremental on - the - fly updates to a volumetric representation, fast training and rendering to satisfy real - time constraints and a small memory footprint for efficient transmission. if achiev... | arxiv:2412.04469 |
we use replicator dynamics to study an iterated prisoners ' dilemma game with memory. in this study, we investigate the characteristics of all 32 possible strategies with a single - step memory by observing the results when each strategy encounters another one. based on these results, we define similarity measures betw... | arxiv:1403.1048 |
in rational verification, the aim is to verify which temporal logic properties will obtain in a multi - agent system, under the assumption that agents ( " players " ) in the system choose strategies for acting that form a game theoretic equilibrium. preferences are typically defined by assuming that agents act in pursu... | arxiv:2301.06157 |
in this paper, we study the problem of multi - view sketch correspondence, where we take as input multiple freehand sketches with different views of the same object and predict as output the semantic correspondence among the sketches. this problem is challenging since the visual features of corresponding points at diff... | arxiv:2001.05744 |
some significant medical research. notable islamic medical pioneers include the persian polymath, avicenna, who, along with imhotep and hippocrates, has also been called the " father of medicine ". he wrote the canon of medicine which became a standard medical text at many medieval european universities, considered one... | https://en.wikipedia.org/wiki/Medicine |
the introduction of the spatial lambda - fleming - viot model ( lv ) in population genetics was mainly driven by the pioneering work of alison etheridge, in collaboration with nick barton and amandine v \ ' eber about ten years ago ( 1, 2 ). the lv model provides a sound mathematical framework for describing the evolut... | arxiv:2307.02431 |
in this work, we present an efficient rank - compression approach for the classical simulation of kraus decoherence channels in noisy quantum circuits. the approximation is achieved through iterative compression of the density matrix based on its leading eigenbasis during each simulation step without the need to store,... | arxiv:2009.06657 |
it is shown in this paper that for open systems, states which are localized in space, discrete in energy, and embedded in the continuum of extended states, can be sustained by low - dimensional and channeled leads. these states have an origin different from that of analogous states discussed by j. von neumann and e. wi... | arxiv:cond-mat/0609214 |
unlike standard quantum mechanics, dynamical reduction models assign no particular a priori status to ` measurement processes ', ` apparata ', and ` observables ', nor self - adjoint operators and positive operator valued measures enter the postulates defining these models. in this paper, we show why and how the hilber... | arxiv:0707.2940 |
a necessary and sufficient condition for existence of a banach space with a finite dimensional decomposition but without the $ \ pi $ - property in terms of norms of compositions of projections is found. | arxiv:0811.1763 |
scaling sequence length has become a critical demand in the era of large language models. however, existing methods struggle with either computational complexity or model expressivity, rendering the maximum sequence length restricted. to address this issue, we introduce longnet, a transformer variant that can scale seq... | arxiv:2307.02486 |
a transverse zeeman slower composed of an array of compact discrete neodymium magnets is considered. a simple and precise model of such a slower based on magnetic dipoles is developed. the theory of a general zeeman slower is modified to include spatial nonuniformity of the slowing laser beam intensity due to its conve... | arxiv:physics/0702074 |
e661 in the enestrom index. this was originally published as " variae considerationes circa series hypergeometricas " ( 1776 ). in this paper euler is looking at the asymptotic behavior of infinite products that are similar to the gamma function. he looks at the relations between some infinite products and integrals. h... | arxiv:0804.1981 |
we study the approximate and mean approximate controllability properties of fractional partial differential equations associated with the so - called hilfer type time - fractional derivative and a non - negative selfadjoint operator $ a _ b $ with a compact resolvent on $ l ^ 2 ( \ omega ) $, where $ \ omega \ subset \... | arxiv:2003.08188 |
nitrogen reduction reaction ( nrr ) which converts nitrogen ( n2 ) to ammonia ( nh3 ) normally requires harsh conditions to break the bound nitrogen bond. herein, via first - principles calculation we reveal that a superior nrr catalytic activity could be obtained through anchoring atomic catalyst above a phosphorene -... | arxiv:2201.11892 |
we report several results concerning $ w ( \ lambda, q ) = \ exp ( s _ 0 / k _ b ) $, the exponent of the ground state entropy of the potts antiferromagnet on a lattice $ \ lambda $. first, we improve our previous rigorous lower bound on $ w ( hc, q ) $ for the honeycomb ( hc ) lattice and find that it is extremely acc... | arxiv:cond-mat/9706162 |
we consider the semilinear wave equation $ $ \ partial _ t ^ 2 u - \ delta u = f ( u ), \ quad ( x, t ) \ in \ mathbb r ^ n \ times [ 0, t ), \ qquad ( 1 ) $ $ with $ f ( u ) = | u | ^ { p - 1 } u \ log ^ a ( 2 + u ^ 2 ) $, where $ p > 1 $ and $ a \ in \ mathbb r $, with subconformal power nonlinearity. we will show th... | arxiv:2012.05374 |
solutions of the cauchy problem for the wave equation on a non - globally hyperbolic spacetime, which contains closed timelike curves ( time machines ) are considered. it is proved, that there exists a solution of the cauchy problem, it is discontinuous and in some sense unique for arbitrary initial conditions, which a... | arxiv:0903.0567 |
motivated by various kinds of new physics models, a new light neutral vector boson ( the dark photon ) connected to the standard model of particle physics only through the kinetic mixing with the u ( 1 ) _ y factor has been studied extensively. various kinds of experiments are proposed to detect it. for the dark photon... | arxiv:1401.8287 |
we propose an approximation for the first return time distribution of random walks on undirected networks. we combine a message - passing solution with a mean - field approximation, to account for the short - and long - term behaviours respectively. we test this approximation on several classes of large graphs and find... | arxiv:2405.20166 |
the formation of massive black hole binaries ( mbhbs ) is an unavoidable outcome of galaxy evolution via successive mergers. however, the mechanism that drives their orbital evolution from parsec separations down to the gravitational wave ( gw ) dominated regime is poorly understood, and their final fate is still uncle... | arxiv:1602.01966 |
diffusion models have been successfully adapted to text generation tasks by mapping the discrete text into the continuous space. however, there exist nonnegligible gaps between training and inference, owing to the absence of the forward process during inference. thus, the model only predicts based on the previously gen... | arxiv:2305.04465 |
we address the separability problem for straight - line string constraints. the separability problem for languages of a class c by a class s asks : given two languages a and b in c, does there exist a language i in s separating a and b ( i. e., i is a superset of a and disjoint from b )? the separability of string cons... | arxiv:2005.09489 |
the ginzburg - landau theory is used for the superconducting structures free energy fluctuations study. on its basis, we have defined the value of the heat capacity jump in the macroscopic zero - dimensional sample and in the zero - dimensional microstructures ensemble of the total volume equal to the macroscopic sampl... | arxiv:0910.4641 |
in this paper, we propose a fourth order pde model for image inpainting based on a variant of the famous mumford - shah ( ms ) image segmentation model. convexity splitting is used to discrtised the time and we replace the laplacian by its fractional counterpart in the time discretised scheme. fourier spectral method i... | arxiv:2208.01887 |
we report the first detections of so _ 2, ns and no in an extragalactic source, the nucleus of the starburst galaxy ngc 253. five so _ 2 transitions, three groups of hyperfine components of no and five of ns were detected. all three species show large abundances averaged over the inner 200 pc of ngc 253. with a relativ... | arxiv:astro-ph/0309663 |
electromagnetic modeling provides an interesting context to present a link between physical phenomena and homology and cohomology theories. over the past twenty - five years, a considerable effort has been invested by the computational electromagnetics community to develop fast and general techniques for potential desi... | arxiv:1111.2374 |
we analyse the kinematic properties of a plasma electron hole : a non - linear self - sustained localized positive electric potential perturbation, trapping electrons, that behaves as a coherent entity. when a hole accelerates or grows in depth, ion and electron plasma momentum is changed both within the hole and outsi... | arxiv:1605.06520 |
stellar streams from globular clusters ( gcs ) offer constraints on the nature of dark matter and have been used to explore the dark matter halo structure and substructure of our galaxy. detection of gc streams in other galaxies would broaden this endeavor to a cosmological context, yet no such streams have been detect... | arxiv:2107.00017 |
we introduce and investigate a series of models for an infection of a diplodiploid host species by the bacterial endosymbiont \ textit { wolbachia }. the continuous models are characterized by partial vertical transmission, cytoplasmic incompatibility and fitness costs associated with the infection. a particular aspect... | arxiv:0906.1676 |
nowadays, indoor localization has received extensive research interest due to more and more applications ' needs for location information to provide a more precise and effective service [ 1 ], [ 2 ]. there are various wireless techniques and mechanisms that have been proposed ; some of them have been studied in depth a... | arxiv:2404.12529 |
we investigate an extension of a lower bound on the waring ( cactus ) rank of homogeneous forms due to ranestad and schreyer. we show that for particular classes of homogeneous forms, for which a generalization of this method applies, the lower bound extends to the level of border ( cactus ) rank. the approach is based... | arxiv:1907.03487 |
characterizing the elastic properties of soft materials through bulge testing relies on accurate measurement of deformation, which is experimentally challenging. to avoid measuring deformation, we propose a hydrodynamic bulge test for characterizing the material properties of thick, pre - stressed elastic sheets via th... | arxiv:1910.03513 |
we present a necessary and sufficient condition on nonnegative radon measures $ \ mu $ and $ \ nu $ for the existence of a positive continuous solution of the dirichlet problem for the sublinear elliptic equation $ - \ delta u = \ mu u ^ q + \ nu $ with prescribed nonnegative continuous boundary data in a general domai... | arxiv:2009.06939 |
we investigate nitrogen isotope fractionation in forming and evolving molecular clouds using gas - ice astrochemical simulations. we find that the bulk gas can become depleted in heavy nitrogen ( 15n ) due to the formation of 15n - enriched ices. around the chemical transition from atomic nitrogen to n2, n15n is select... | arxiv:1803.06787 |
like a black hat hacker, but is specifically someone who is very skilled and tries via hacking to make profits or to benefit, not just to vandalize. crackers find exploits for system vulnerabilities and often use them to their advantage by either selling the fix to the system owner or selling the exploit to other black... | https://en.wikipedia.org/wiki/Hacker |
we consider the moduli space of log smooth pairs formed by a cubic surface and an anticanonical divisor. we describe all compactifications of this moduli space which are constructed using geometric invariant theory and the anticanonical polarization. the construction depends on a weight on the divisor. for smaller weig... | arxiv:1607.03697 |
we study two - color qcd in an external magnetic backround at finite temperature using the polyakov - loop extended two - flavor two - color njl model. at t = 0, the chiral condensate is calculated and it is found to increase as a function of the magnetic field $ b $. in the chiral limit the deconfinement transition li... | arxiv:1211.7293 |
in this paper, we will derive the cross section formula for the higgs pair production at a linear $ e ^ + e ^ - $ collider in models with large extra dimensions and study the feasibility of its measurement through realistic monte carlo simulations. since the process has essentially no standard model background, once pr... | arxiv:hep-ex/0403029 |
we present new kinematic measurements and modeling of a sample of 116 young stars in the central parsec of the galaxy in order to investigate the properties of the young stellar disk. the measurements were derived from a combination of speckle and laser guide star adaptive optics imaging and integral field spectroscopy... | arxiv:1401.7354 |
this is a preliminary report on the contou - carrere symbol for surfaces. it consists of two parts. in the first part, we recall technical results needed to define the symbol. the second part is where we compute all components of the coutou - carrere symbol for surfaces, using iterated integrals over membranes. | arxiv:1310.7065 |
the kissing number of $ \ mathbb { r } ^ n $ is the maximum number of pairwise - nonoverlapping unit spheres that can simultaneously touch a central unit sphere. mittelmann and vallentin ( 2010 ), based on the semidefinite programming bound of bachoc and vallentin ( 2008 ), computed the best known upper bounds for the ... | arxiv:1609.05167 |
quantum simulation is one of the key applications of quantum computing, which accelerates research and development in the fields such as chemistry and material science. the recent development of noisy intermediate - scale quantum ( nisq ) devices urges the exploration of applications without the necessity of quantum er... | arxiv:1904.08566 |
a mechanism of controlling the degree of strain relaxation in gesn epilayers, grown by molecular beam epitaxy on ge / si ( 001 ) substrates, is reported in this work. it is demonstrated that by suitably controlling the thickness and the growth recipe of the underlying ge buffer layer, both fully - strained and highly -... | arxiv:1807.09718 |
image fusion is famous as an alternative solution to generate one high - quality image from multiple images in addition to image restoration from a single degraded image. the essence of image fusion is to integrate complementary information from source images. existing fusion methods struggle with generalization across... | arxiv:2410.12274 |
researchers are constantly leveraging new forms of data with the goal of understanding how people perceive the built environment and build the collective place identity of cities. latest advancements in generative artificial intelligence ( ai ) models have enabled the production of realistic representations learned fro... | arxiv:2306.04662 |
different spacetime regions separated by horizons are not related to each other. we know that this statement holds for classical spacetimes. in this paper we carry out a canonical quantization of a kantowski - sachs minisuperspace model whose classical solutions exhibit both an event horizon and a cosmological horizon ... | arxiv:1410.2543 |
given c $ ^ * $ - algebras $ a $ and $ b $ and a $ ^ * $ - homomorphism $ \ phi : a \ rightarrow b $, we adopt the portrait of the relative $ k $ - theory $ k _ * ( \ phi ) $ due to karoubi using banach categories and banach functors. we show that the elements of the relative groups may be represented in a simple form.... | arxiv:2106.02620 |
the nonlinear effects of environmental variability on species abundance plays an important role in the maintenance of ecological diversity. nonetheless, many common models use parametric nonlinear terms pre - determining ecological conclusions. motivated by this concern, we study the estimate of the second derivative (... | arxiv:1803.09321 |
how is knowledge of position - role mappings in natural language learned? we explore this question in a computational setting, testing whether a variety of well - performing pertained language models ( bert, roberta, and distilbert ) exhibit knowledge of these mappings, and whether this knowledge persists across altern... | arxiv:2202.03611 |
we report on the status of efforts to improve the reinterpretation of searches and measurements at the lhc in terms of models for new physics, in the context of the lhc reinterpretation forum. we detail current experimental offerings in direct searches for new particles, measurements, technical implementations and open... | arxiv:2003.07868 |
we prove, when $ s $ is a $ 2 $ - group of order at most $ 2 ^ 9 $, that each reduced fusion system over $ s $ is the fusion system of a finite simple group and is tame. it then follows that each saturated fusion system over a $ 2 $ - group of order at most $ 2 ^ 9 $ is realizable. what is most interesting about this r... | arxiv:1606.05059 |
rr fields in string backgrounds including orientifold planes and branes on top of them are classified by k - theory. following the idea introduced in hep - th / 0103183, we also classify such fluxes by cohomology. both of them are compared through the atiyah - hirzebruch spectral sequence. some new correlations between... | arxiv:hep-th/0206183 |
nonlinear negative imaginary ( ni ) systems arise in various engineering applications, such as controlling flexible structures and air vehicles. however, unlike linear ni systems, their theory is not well - developed. in this paper, we propose a data - driven method for learning a lifted linear ni dynamics that approxi... | arxiv:2305.04191 |
we consider a minimal go - or - grow model of cell invasion, whereby cells can either proliferate, following logistic growth, or move, via linear diffusion, and phenotypic switching between these two states is density - dependent. formal analysis in the fast switching regime shows that the total cell density in the two... | arxiv:2404.11251 |
it is proved that for integers $ b, r $ such that $ 3 \ leq b < r \ leq \ binom { b + 1 } { 2 } - 1 $, there exists a red / blue edge - colored graph such that the red degree of every vertex is $ r $, the blue degree of every vertex is $ b $, yet in the closed neighborhood of every vertex there are more blue edges than... | arxiv:2312.08777 |
spectrophotometric observations of the coma of the comets c / 2000 wm1 ( linear ) and c / 2002 c1 ( ikeya - zhang ) were taken during nov, dec 2001 and mar, apr 2002 respectively with 104 - cm telescope of the state observatory, nainital. cn ( $ \ lambda $ 3883 \ aa ) and c $ _ { 2 } $ swan bands ( $ \ lambda $ 4695, $... | arxiv:astro-ph/0211143 |
we demonstrate that the gibbs - shannon entropy is applicable to non - equilibrium systems of any size and boundary conditions. the change in microscopic entropy can be attributed to the stochastic nature of dynamic processes and to the inherent uncertainties of thermodynamic systems. the latter predicts that entropy p... | arxiv:2010.04648 |
the problem of data synchronization arises in networked applications that require some measure of consistency. indeed data synchronization approaches have demonstrated a significant potential for improving performance in various applications ranging from distributed ledgers to fog - enabled storage offloading for iot. ... | arxiv:2303.17530 |
this paper analyzes the fundamental limit of the strategic semantic communication problem in which a transmitter obtains a limited number of indirect observation of an intrinsic semantic information source and can then influence the receiver ' s decoding by sending a limited number of messages to an imperfect channel. ... | arxiv:2202.03711 |
the t = 0 dynamical properties of the one - dimensional ( 1d ) $ s = 1 / 2 $ heisenberg antiferromagnet in a uniform magnetic field are studied via bethe ansatz for cyclic chains of $ n $ sites. the ground state at magnetization $ 0 < m _ z < n / 2 $, which can be interpreted as a state with $ 2m _ z $ spinons or as a ... | arxiv:cond-mat/0205142 |
in this paper, we study forward - backward doubly stochastic differential equations driven by brownian motions and poisson process ( fbdsdep in short ). both the probabilistic interpretation for the solutions to a class of quasilinear stochastic partial differential - integral equations ( spdies in short ) and stochast... | arxiv:1005.2494 |
the observed neutrino oscillation data might be explained by new physics at a tev scale, which is testable in the future experiments. among various possibilities, the low - energy higgs triplet model is a prime candidate of such new physics since it predicts clean signatures of lepton flavor violating processes directl... | arxiv:hep-ph/0304069 |
young giant planets, which are embedded in a circumstellar disk, will significantly perturb the disk density distribution. this effect can potentially be used as an indirect tracer for planets. we investigate the feasibility of observing planet - induced gaps in circumstellar disks in scattered light. we perform 3d hyd... | arxiv:1411.2735 |
how to detect spacetime torsion? in this essay we provide the theoretical basis for an answer to this question. multipolar equations of motion for a very general class of gravitational theories with nonminimal coupling in spacetimes admitting torsion are given. our findings provide a framework for the systematic testin... | arxiv:1405.4137 |
transferring knowledge across domains is one of the most fundamental problems in machine learning, but doing so effectively in the context of reinforcement learning remains largely an open problem. current methods make strong assumptions on the specifics of the task, often lack principled objectives, and - - crucially ... | arxiv:2211.14469 |
round robin, considered as the most widely adopted cpu scheduling algorithm, undergoes severe problems directly related to quantum size. if time quantum chosen is too large, the response time of the processes is considered too high. on the other hand, if this quantum is too small, it increases the overhead of the cpu. ... | arxiv:1111.5348 |
single - cell studies often show significant phenotypic variability due to the stochastic nature of intra - cellular biochemical reactions. when the numbers of molecules, e. g., transcription factors and regulatory enzymes, are in low abundance, fluctuations in biochemical activities become significant and such " noise... | arxiv:1309.2588 |
we present the first large sample of accurate iron abundances and temperatures for clusters at redshifts greater than 0. 14. we find that the fe abundance shows little or no evolution out to redshift 0. 3. this and the early formation epoch of elliptical galaxies in clusters indicate that most of the enrichment of the ... | arxiv:astro-ph/9702149 |
we present our results of the spectroscopic study of the lenticular galaxy ngc 4143 - an outskirt member of the ursa major cluster. using the observations at the 6 - m sao ras telescope with the scorpio - 2 spectrograph and also the archive data of panoramic spectroscopy with the sauron ifu at the wht, we have detected... | arxiv:2009.00126 |
we obtained a second chandra timing measurement of the 3. 82 s pulsar cxou j171405. 7 - 381031 in the supernova remnant ( snr ) ctb 37b, which shows that it is spinning down rapidly. the average period derivative of ( 5. 88 + / - 0. 08 ) e - 11 over the 1 year time span corresponds to a dipole magnetic field strength b... | arxiv:1008.2558 |
we prove that the only bott manifolds such that the futaki invariant vanishes for any k \ " ahler class are isomorphic to the products of the projective lines. | arxiv:2305.05924 |
introduction : substance use disorders ( suds ) have emerged as a pressing public health crisis in the united states, with adolescent substance use often leading to suds in adulthood. effective strategies are needed to prevent this progression. to help in filling this need, we develop a novel and the first - ever absol... | arxiv:2501.09156 |
i analyze cutoff effects of the gradient flow for wilson - type fermions. i show that with a proper choice of the higher dimensional fields in the symanzik effective theory, o ( $ a $ ) improvement of the action is achieved changing the initial conditions of the gradient flow equation. | arxiv:2301.08591 |
low - field ( < 1t ) magnetic resonance imaging ( mri ) scanners remain in widespread use in low - and middle - income countries ( lmics ) and are commonly used for some applications in higher income countries e. g. for small child patients with obesity, claustrophobia, implants, or tattoos. however, low - field mr ima... | arxiv:2304.13385 |
##electronics and mems in particular. silicon nanowires, fabricated through the thermal oxidation of silicon, are of further interest in electrochemical conversion and storage, including nanowire batteries and photovoltaic systems. polymers even though the electronics industry provides an economy of scale for the silic... | https://en.wikipedia.org/wiki/MEMS |
magnetic flux rope ( mfr ) plays an important role in solar activities. a quantitative assessment of the topology of an mfr and its evolution is crucial for a better understanding of the relationship between the mfr and the associated activities. in this paper, we investigate the magnetic field of active region 12017 f... | arxiv:1604.07502 |
the prevalence of covid - 19 has been the most serious health challenge of the 21th century to date, concerning national health systems on a daily basis, since december 2019 when it appeared in wuhan city. nevertheless, most of the proposed mathematical methodologies aiming to describe the dynamics of an epidemic, rely... | arxiv:2207.05011 |
we have constructed a sequence of solutions of the helmholtz equation forming an orthogonal sequence on a given surface. coefficients of these functions depend on an explicit algebraic formulae from the coefficient of the surface. moreover, for exterior helmholtz equation we have constructed an explicit normal derivati... | arxiv:0709.1929 |
when a binary of early - type stars from the young stellar populations in the galactic center ( gc ) region is scattered to the vicinity of the supermassive black hole ( smbh ) sgr ~ $ \ rm { a } ^ { * } $, one of the components would be tidally ejected as an early - type hypervelocity star ( hvs ) and the counterpart ... | arxiv:2411.09278 |
time - resolved pump - probe measurements of xe, pumped at 133 ~ nm and probed at 266 ~ nm, are presented. the pump pulse prepared a long - lived hyperfine wavepacket, in the xe $ 5p ^ 5 ( ^ 2p ^ { \ circ } _ { 1 / 2 } ) 6s ~ ^ 2 [ 1 / 2 ] ^ { \ circ } _ 1 $ manifold ( $ e = $ 77185 cm $ ^ { - 1 } = $ 9. 57 ev ). the w... | arxiv:1803.01081 |
we use published measurements of the transmission power spectrum of the lyman alpha forest to constrain several parameters that describe cosmology and thermal properties of the intergalactic medium ( igm ). a 6 parameter grid is constructed using particle - mesh dark matter simulations together with scaling relations t... | arxiv:astro-ph/0011559 |
in the last years the direct measurement of cosmic rays received a push forward by the possibility of conducting experiments on board long duration balloon flights, satellites and on the international space station. the increase in the collected statistics and the technical improvements in the construction of the detec... | arxiv:1407.1143 |
we propose a novel approach, sequential lasso, for feature selection in linear regression models with ultra - high dimensional feature spaces. we investigate in this article the asymptotic properties of sequential lasso and establish its selection consistency. like other sequential methods, the implementation of sequen... | arxiv:1107.2734 |
consider a random graph, having a pre - specified degree distribution f but other than that being uniformly distributed, describing the social structure ( friendship ) in a large community. suppose one individual in the community is externally infected by an infectious disease and that the disease has its course by ass... | arxiv:math/0702021 |
even though dyadic regressions are widely used in empirical applications, the ( asymptotic ) properties of estimation methods only began to be studied recently in the literature. this paper aims to provide in a step - by - step manner how u - statistics tools can be applied to obtain the asymptotic properties of pairwi... | arxiv:2309.02089 |
we study the boundary behavior of the kobayashi - royden metric and the kobayashi hyperbolicity of domains in riemannian manifolds. as an application, we prove a fatou type theorem on the existence, almost everywhere, of non tangential limits for bounded conformal harmonic immersed discs. we also prove a picard theorem... | arxiv:2407.15976 |
the recently emerged symbol - level precoding ( slp ) technique has been regarded as a promising solution in multi - user wireless communication systems, since it can convert harmful multi - user interference ( mui ) into beneficial signals for enhancing system performance. however, the tremendous computational complex... | arxiv:2104.09799 |
let $ m _ \ sigma $ be an $ n $ - dimensional thom - mather stratified space of depth $ 1 $. we denote by $ \ beta m $ the singular locus and by $ l $ the associated link. in this paper we study the problem of when such a space can be endowed with a wedge metric of positive scalar curvature. we relate this problem to r... | arxiv:1908.04420 |
the riemann curvature correction to the type ii supergravity at eight - derivative level is given schematically as $ ( t _ 8t _ 8 + { 1 } { 8 } \ eps _ { 10 } \ eps _ { 10 } ) r ^ 4 $ at tree - level. the replacement of the generalized riemann curvature in $ t _ 8t _ 8r ^ 4 $, proposed by gross and sloan, produces vari... | arxiv:1306.6851 |
we use idealised n - body simulations of equilibrium discs in live and static haloes to study how dark matter co - evolution impacts the assembly of stellar particles into a bar and the halo response. initial conditions correspond to a marginally unstable disc according to commonly used disc stability criteria, and are... | arxiv:2408.03375 |
in this article a complete set of invariants for ordinary quartic curves in characteristic 2 is computed. | arxiv:math/0405052 |
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