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ee3efb0992368a5a8786cca15fb756251135781f43c2a75ee04941c9590e110c
2026-01-13T00:00:00-05:00
Lagrange multiplier expressions for matrix polynomial optimization and tight relaxations
arXiv:2506.12579v2 Announce Type: replace Abstract: This paper studies matrix constrained polynomial optimization. We investigate how to get explicit expressions for Lagrange multiplier matrices from the first order optimality conditions. The existence of these expressions can be shown under the nondegeneracy condition...
https://arxiv.org/abs/2506.12579
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4c6c26c66c8796190f1ef691edb155856265c6e8bbe3e807a06a7fcfa8e44cf5
2026-01-13T00:00:00-05:00
Generalized Frobenius Manifold Structures on the Orbit Spaces of Affine Weyl Groups I
arXiv:2506.13656v3 Announce Type: replace Abstract: We present an approach to construct a class of generalized Frobenius manifold structures on the orbit spaces of affine Weyl groups, and prove that their monodromy groups are parabolic subgroups of the associated affine Weyl groups.
https://arxiv.org/abs/2506.13656
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9c7b44da7393e0029885e5bc44151e4ff4bf8124730b970b85350c9053d6659e
2026-01-13T00:00:00-05:00
Automorphism groups and linearizability of rational Fano conic bundle threefolds
arXiv:2506.15042v2 Announce Type: replace Abstract: We generalize the equivariant intermediate Jacobian torsor obstruction over $\mathbb{C}$ to algebraically closed fields of characteristic zero. It is an obstruction to the (projective) linearizability problem of finite group actions on threefolds. In addition, we calc...
https://arxiv.org/abs/2506.15042
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7d962ae2ae1de83e96aa4f7aef019a4f068fb32025e663d17622fdda6eff09b7
2026-01-13T00:00:00-05:00
Transporting a Dirac mass in a mean field planning problem
arXiv:2506.16041v2 Announce Type: replace Abstract: We study a mean field planning problem in which the initial density is a Dirac mass. We show that there exists a unique solution which converges to a self-similar profile as time tends to $0$. We proceed by studying a continuous rescaling of the solution, and characte...
https://arxiv.org/abs/2506.16041
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63a5dd7c2a35be3a16844e3793e958b727ac0044d098474bffaba1580e6e1ff5
2026-01-13T00:00:00-05:00
Deep random difference method for high-dimensional quasilinear parabolic partial differential equations
arXiv:2506.20308v2 Announce Type: replace Abstract: Solving high-dimensional parabolic partial differential equations (PDEs) with deep learning methods is often computationally and memory intensive, primarily due to the need for automatic differentiation (AD) to compute large Hessian matrices in the PDE. In this work, ...
https://arxiv.org/abs/2506.20308
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96de19c4a9efa1a90c0578670acf1beb5b72ef2098443cba1d7ac59cdaba8c4e
2026-01-13T00:00:00-05:00
On a minimal free resolution of the residue field over a local ring of codepth 3 of class $T$
arXiv:2506.21505v2 Announce Type: replace Abstract: Let $R$ be any noetherian local ring with residue field $k$, and $A$ the homology of the Koszul complex on a minimal set of generators of the maximal ideal of $R$. In this paper, we show that a minimal free resolution of $k$ over $R$ can be obtained from a graded mini...
https://arxiv.org/abs/2506.21505
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daf73ddffa04c182faacd504738d94b5e5c359e073a3220e633a9b9aad8db191
2026-01-13T00:00:00-05:00
The Dedekind-Hasse Criterion in Quaternion Algebras
arXiv:2506.22651v2 Announce Type: replace Abstract: We show that a criterion for an integral domain to be a principal ideal domain (PID), due to Dedekind and Hasse, can also be applied in quaternion orders, and that it can be used to build a finite algorithm to determine if a given order is a principal left (or right) ...
https://arxiv.org/abs/2506.22651
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677f61dda199c8c309ae2e37799f2d328d1a73d6a90583acae7189dbbf261a2f
2026-01-13T00:00:00-05:00
An infinite family of pairs of distinct quartic Galois CM-fields with the same discriminant and regulator
arXiv:2506.23541v2 Announce Type: replace Abstract: We construct an infinite family of pairs of distinct imaginary biquadratic fields and pairs of distinct imaginary cyclic quartic fields with the same discriminant and regulator. We also construct an infinite family of imaginary biquadratic fields and imaginary cyclic ...
https://arxiv.org/abs/2506.23541
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57b5c6eee927be1b74359124858a665946b62243643d6755533497dd277061e2
2026-01-13T00:00:00-05:00
Existence and Incompressible Limit of Weak and Classical Solutions to the Cauchy Problem for Compressible Navier-Stokes Equations with Large Bulk Viscosity and Large Initial Data
arXiv:2507.02497v2 Announce Type: replace Abstract: This paper investigates the Cauchy problem for the barotropic compressible Navier-Stokes equations in $\mathbb{R}^2$ with the constant state as far field, which could be vacuum or non-vacuum. Under the assumption of a sufficiently large bulk viscosity coefficient, we ...
https://arxiv.org/abs/2507.02497
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18ac072d0b69839f2f5d35f173a3084bc802a8e9388e9322cbe2d1cb6574091e
2026-01-13T00:00:00-05:00
Skew Laurent Series and General Cyclic Convolutional Codes
arXiv:2507.05022v2 Announce Type: replace Abstract: Convolutional codes were originally conceived as vector subspaces of a finite-dimensional vector space over a field of Laurent series having a polynomial basis. Piret and Roos modeled cyclic structures on them by adding a module structure over a finite-dimensional alg...
https://arxiv.org/abs/2507.05022
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35d2b8eec4abbd8d1c00de668c0adad91f67c4a0d6036a5c17b3ad684a6003bc
2026-01-13T00:00:00-05:00
Covering Complete Geometric Graphs by Monotone Paths
arXiv:2507.10840v2 Announce Type: replace Abstract: Given a set $A$ of $n$ points (vertices) in general position in the plane, the \emph{complete geometric graph} $K_n[A]$ consists of all $\binom{n}{2}$ segments (edges) between the elements of $A$. It is known that the edge set of every complete geometric graph on $n$ ...
https://arxiv.org/abs/2507.10840
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717df43a9b14a9f308389bc7f4ef666d955a2903fd54cfe267de0ed50cea51a0
2026-01-13T00:00:00-05:00
Hierarchical Secure Aggregation with Heterogeneous Security Constraints and Arbitrary User Collusion
arXiv:2507.14768v2 Announce Type: replace Abstract: In hierarchical secure aggregation (HSA), a server communicates with clustered users through an intermediate layer of relays to compute the sum of users' inputs under two security requirements -- server security and relay security. Server security requires that the se...
https://arxiv.org/abs/2507.14768
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0ff882ec9a029418e3d3c65ca4ab45edc4adfed063ea553f309e2f59ef52e616
2026-01-13T00:00:00-05:00
A result on spanning trees with bounded total excess
arXiv:2507.15139v2 Announce Type: replace Abstract: Let $G$ be a connected graph and $T$ a spanning tree of $G$. Let $\rho(G)$ denote the adjacency spectral radius of $G$. The $k$-excess of a vertex $v$ in $T$ is defined as $\max\{0,d_T(v)-k\}$. The total $k$-excess $\mbox{te}(T,k)$ is defined by $\mbox{te}(T,k)=\sum\l...
https://arxiv.org/abs/2507.15139
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0298c46d849780b96aa0840d3d686fa89c9d197fbc13516333ab104c72b42687
2026-01-13T00:00:00-05:00
Riesz representers for the rest of us
arXiv:2507.19413v3 Announce Type: replace Abstract: The application of semiparametric efficient estimators, particularly those that leverage machine learning, is rapidly expanding within epidemiology and causal inference. This literature is increasingly invoking the Riesz representation theorem and Riesz regression. Th...
https://arxiv.org/abs/2507.19413
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0877e07ff9b92c664391659923d85b470fbdf6b6e663fdaf0e4d25ba9860ceed
2026-01-13T00:00:00-05:00
Time-complexity of sampling from a multimodal distribution using sequential Monte Carlo
arXiv:2508.02763v2 Announce Type: replace Abstract: We study a sequential Monte Carlo algorithm to sample from the Gibbs measure with a non-convex energy function at a low temperature. We use the practical and popular geometric annealing schedule, and use a Langevin diffusion at each temperature level. The Langevin dif...
https://arxiv.org/abs/2508.02763
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527508042d4353351c7aec85468e8e1b9f7a5e1a8f70deb1a209bf38870bbf67
2026-01-13T00:00:00-05:00
Extendability of $1$-decomposable complexes
arXiv:2508.04555v3 Announce Type: replace Abstract: A well-known conjecture of Simon (1994) states that any pure $d$-dimensional shellable complex on $n$ vertices can be extended to $\Delta_{n-1}^{(d)}$, the $d$-skeleton of the $(n-1)$-dimensional simplex, by attaching one facet at a time while maintaining shellability...
https://arxiv.org/abs/2508.04555
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b2e5319b61bcb9511238294f662e5ea9cf18c6b2ac59d7ebaf3eb9035ffac01a
2026-01-13T00:00:00-05:00
The modified diagonal cycles of Hypergeometric curves
arXiv:2508.06008v2 Announce Type: replace Abstract: For each $N\geq 2$, Asakura and Otsubo have recently introduced a smooth family of algebraic curves $\{X_{N,\lambda}\}_{\lambda \in \mathbb{P}^1\setminus \{0, 1, \infty\}}$ in characteristic 0 that is closely related to hypergeometric functions and the Fermat curve of...
https://arxiv.org/abs/2508.06008
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98a82862bedc77348e7d263b4137255dfb536dd5bcb4f9f1b3fc90605c6171dc
2026-01-13T00:00:00-05:00
Connected components of Berkovich fixed locus: Potential good reduction
arXiv:2508.07156v2 Announce Type: replace Abstract: Let $\mathbbm{P}^{1,an}$ be the Berkovich projective line over a complete, algebraically closed, non-Archimedean field. Let $\phi$ be a degree $\geq 2$ rational map with potential good reduction, acting on $\mathbbm{P}^{1,an}$. In this article, we study the topology o...
https://arxiv.org/abs/2508.07156
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86c3a0040e9313190ddee79b4a1b66d5313ba1298b381d227cfac1c390137fa8
2026-01-13T00:00:00-05:00
A Generalized Crystalline Equivalence Principle
arXiv:2508.10978v3 Announce Type: replace Abstract: We prove a general version of the crystalline equivalence principle which gives an equivalence of categories between a category of TQFTs defined on a generic space with $G$-symmetry, and a category of TQFTs with internal symmetry. We give a definition and classificati...
https://arxiv.org/abs/2508.10978
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c8072f045f6b8b26c23c370af95554283365b5384ed7e578d3a0402335457844
2026-01-13T00:00:00-05:00
Reciprocity for GL(2) L-functions twisted by Dirichlet characters
arXiv:2508.12401v2 Announce Type: replace Abstract: A formula connecting a moment of L-functions and a dual moment in a way that interchanges the roles of certain key parameters on both sides is known as a reciprocity relation. We establish a reciprocity relation for a first moment of GL(2) L-functions twisted by Diric...
https://arxiv.org/abs/2508.12401
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4c745990fc41630b1d8d639a91232dc0e4743029e1c351feb1e8aab5d402a90b
2026-01-13T00:00:00-05:00
Stabilized automorphism groups and full groups of odometers
arXiv:2508.20005v2 Announce Type: replace Abstract: In this article, we show that the stabilized automorphism group of free exact odometers arising from actions of finitely generated residually finite groups coincides with the topological full group of the odometer acting on itself by right multiplication. We then prov...
https://arxiv.org/abs/2508.20005
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99a7bfc343f1ad9d7f98b64792edb1227d34f6f320e55b50ba0f69cde6a73736
2026-01-13T00:00:00-05:00
The linear minimal 4-chart with three crossings
arXiv:2509.04114v2 Announce Type: replace Abstract: Charts are oriented labeled graphs in a disk. Any simple surface braid (2-dimensional braid) can be described by using a chart. Also, a chart represents an oriented closed surface embedded in 4-space. In this paper, we investigate embedded surfaces in 4-space by using...
https://arxiv.org/abs/2509.04114
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8b2c8e77f451862d92db72d40753209b8370a3471c5a180aa27560211e936237
2026-01-13T00:00:00-05:00
Unitary equivalence in Generalized Uncertainty Principle theories
arXiv:2509.05477v2 Announce Type: replace Abstract: We analyze the issue of unitary equivalence within Generalized Uncertainty Principle (GUP) theories in the one-dimensional case. For a deformed Heisenberg algebra, its representation in terms of Hilbert space and conjugate operators is not uniquely determined, raising...
https://arxiv.org/abs/2509.05477
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e51caec39948373a2ef0b3a152c92dc6f4614d181eebee91d2c77681c45edd62
2026-01-13T00:00:00-05:00
Robust Confidence Intervals for a Binomial Proportion: Local Optimality and Adaptivity
arXiv:2509.05568v2 Announce Type: replace Abstract: This paper revisits the classical problem of interval estimation of a binomial proportion under Huber contamination. Our main result derives the rate of optimal interval length when the contamination proportion is unknown under a local minimax framework, where the per...
https://arxiv.org/abs/2509.05568
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27800406464f34d46af7347037c4f666ff833a46955363a7743e90d07dbc96b1
2026-01-13T00:00:00-05:00
Convergence analysis for the Barrett--Garcke--Nurnberg method of transport type for evolving curves
arXiv:2509.07834v2 Announce Type: replace Abstract: In this paper, we propose a Barrett-Garcke-Nurnberg (BGN) method for evolving geometries under general flows and present the corresponding convergence analysis. Specifically, we examine the scenario where a closed curve evolves according to a prescribed background vel...
https://arxiv.org/abs/2509.07834
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0e059185625dc2369cf96aa2ab54f82e2b24f3f1ece3bac16b9ede0c7a816ac4
2026-01-13T00:00:00-05:00
Finite time blow-up and global solutions for the viscoelastic wave equation with combined power-type nonlinearities
arXiv:2509.08462v3 Announce Type: replace Abstract: The main objective of this manuscript is to investigate the global behavior of the solutions to the viscoelastic wave equation with a linear memory term of Boltzmann type, and a nonlinear damping modeling friction, as well as a supercritical source term which is a com...
https://arxiv.org/abs/2509.08462
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107c53188dbd84e153531aa86e6d773aa8a96c090101c31fdf55b7ced4e71bd1
2026-01-13T00:00:00-05:00
Rank of the family of elliptic curves $y^2 = x^3- 5px$
arXiv:2509.09169v3 Announce Type: replace Abstract: This article considers the family of elliptic curves given by $E_{p}: y^2=x^3-5px$ and certain conditions on an odd prime $p$. More specifically, we have shown that if $p \equiv 7, 23 \pmod {40}$, then the rank of $E_{p}$ is zero for both $ \mathbb{Q} $ and $ \mathbb{...
https://arxiv.org/abs/2509.09169
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330def60830d4a799d562a9abfc51a7e599bfab2a31b87c47c25f15369688e9d
2026-01-13T00:00:00-05:00
Long-time behavior of a nonlocal Cahn-Hilliard equation with nonlocal dynamic boundary condition and singular potentials
arXiv:2509.10304v2 Announce Type: replace Abstract: We investigate the long-time behavior of a nonlocal Cahn-Hilliard equation in a bounded domain $\Omega\subset\mathbb{R}^d$ $(d\in\{2,3\})$, subject to a kinetic rate-dependent nonlocal dynamic boundary condition. The kinetic rate $1/L$, with $L\in[0,+\infty)$, disting...
https://arxiv.org/abs/2509.10304
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35c990fb23e81a59cf65e6b6734a98e49396d72d65913db9fc50ea37e8fbd9d2
2026-01-13T00:00:00-05:00
Decomposition of the Tschirnhausen module for coverings on decomposable $\mathbb{P}^1$-bundles
arXiv:2509.11227v3 Announce Type: replace Abstract: In this note, we show that for a smooth algebraic variety $Y$ and a smooth $m$-section $X$ of the $\mathbb{P}^1$-bundle \[ f : \mathbb{P}(\mathcal{O}_Y \oplus \mathcal{O}_Y(E)) \longrightarrow Y, \] where $E$ is an effective divisor on $Y$ satisfying $H^1(Y, \mathcal{...
https://arxiv.org/abs/2509.11227
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3e4391cf27d7706d58a885de3babed3e5daad2f6c6b13ae77756e71830288cb0
2026-01-13T00:00:00-05:00
Spotlight inversion by orthogonal projections
arXiv:2509.15512v2 Announce Type: replace Abstract: Many computational problems involve solving a linear system of equations, although only a subset of the entries of the solution are needed. In inverse problems, where the goal is to estimate unknown parameters from indirect noisy observations, it is not uncommon that ...
https://arxiv.org/abs/2509.15512
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6ce61d31c67b5dbb229d2769e698e6bd335d86290645ce6718b4d7c2fb31c809
2026-01-13T00:00:00-05:00
Quantum Howe duality and Schur duality of type AIII
arXiv:2509.18982v2 Announce Type: replace Abstract: We establish a new connection between the iHowe duality of type AIII established by Luo-Xu and the iSchur duality established by Bao-Wang. We show that iweight $\overline{\rho}$ space in the iHowe duality is naturally isomorphic to the tensor space in the iSchur duali...
https://arxiv.org/abs/2509.18982
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c8e293e328ed74bec3e8d14fdf4206afdf094693426691555b2a5663672dbae3
2026-01-13T00:00:00-05:00
Higher-order Sobolev and Rellich inequalities via iterated Talenti's principle
arXiv:2509.19198v2 Announce Type: replace Abstract: In this paper we establish higher-order Sobolev and Rellich-type inequalities on non-compact Riemannian manifolds supporting an isoperimetric inequality. We highlight two notable settings: manifolds with non-negative Ricci curvature and having Euclidean volume growth ...
https://arxiv.org/abs/2509.19198
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b5b967576202ec8fab99c340c38463615dc9e168552229fbba31b989cd595730
2026-01-13T00:00:00-05:00
ALNS for Tugboat Scheduling in Inland Waterway
arXiv:2509.19718v2 Announce Type: replace Abstract: This paper focuses on the barges shipping problem, also known as the tugboats scheduling problem, within the context of a scenario where a single tugboat has the capacity to tow multiple barges and conduct multiple trips in a drop-and-pull mode during a daily work shi...
https://arxiv.org/abs/2509.19718
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46431be3d783f9b29b5c6e92ddeff485629d94f9d8bf396360e3f960193fe258
2026-01-13T00:00:00-05:00
Souriau-Fisher metric and Completely integrable system on Lie groups SO(2) and SO(3)
arXiv:2509.20910v2 Announce Type: replace Abstract: We study the generalize Fisher metric on SO(2) and SO(3) via the thermodynamics Lie group theories of Souriau. Then we give the effect of 2-cocycle on the integrability of gradient systems due to the Fisher metric and Souriau-Fisher metric. In addition, we show how th...
https://arxiv.org/abs/2509.20910
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d9981c83e0f1c7ef39df573ba001f99998dc9c4339141f02e642776cc80b0f5e
2026-01-13T00:00:00-05:00
Optimal Control of a Navier-Stokes-Cahn-Hilliard System for Membrane-fluid Interaction
arXiv:2509.22069v2 Announce Type: replace Abstract: We consider an optimal control problem for a two-dimensional Navier-Stokes-Cahn-Hilliard system arising in the modeling of fluid-membrane interaction. The fluid dynamics is governed by the incompressible Navier-Stokes equations, which are nonlinearly coupled with a si...
https://arxiv.org/abs/2509.22069
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8cd92cfe8a90d7e10364bc11ef56c8e2ca642269c1e5543199d1753a78800b3d
2026-01-13T00:00:00-05:00
Advances in the Shannon Capacity of Graphs
arXiv:2509.24600v2 Announce Type: replace Abstract: We derive exact values and new bounds for the Shannon capacity of two families of graphs: the $q$-Kneser graphs and the tadpole graphs. We also construct a countably infinite family of connected graphs whose Shannon capacity is not attained by the independence number ...
https://arxiv.org/abs/2509.24600
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9732d2f77a6945aae0d6a4f8c9a72a9c0cb9c14694094ae09fa13a5c185e7b9d
2026-01-13T00:00:00-05:00
The Euler characteristic of $\ell$-adic local systems on $\mathcal{A}_n$
arXiv:2510.00656v2 Announce Type: replace Abstract: We study the Euler characteristic of $\ell$-adic local systems on the moduli stack $\mathcal{A}_n$ of principally polarized abelian varieties of dimension $n$ associated to algebraic representations of $\mathbf{GSp}_{2n}$, as virtual representations of the absolute Ga...
https://arxiv.org/abs/2510.00656
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c6d02c1bd68af6c1dee1765e5d61d8e26c6203b23741e2d788195d8b22656bdd
2026-01-13T00:00:00-05:00
Agile Tradespace Exploration for Space Rendezvous Mission Design via Transformers
arXiv:2510.03544v2 Announce Type: replace Abstract: Spacecraft rendezvous enables on-orbit servicing, debris removal, and crewed docking, forming the foundation for a scalable space economy. Designing such missions requires rapid exploration of the tradespace between control cost and flight time across multiple candida...
https://arxiv.org/abs/2510.03544
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f042ed95a4dc4a53832e096fa2ee74a28235b3bbed7cde245c6bc23c9e460ab2
2026-01-13T00:00:00-05:00
The $\mathbb{A}^1$-Euler characteristic of symmetric powers
arXiv:2510.06922v2 Announce Type: replace Abstract: The $\mathbb{A}^1$-Euler characteristic is a refinement in algebraic geometry of the classical topological Euler characteristic, which can be constructed using motivic homotopy theory. This invariant is a quadratic form rather than an integer, which carries a lot of i...
https://arxiv.org/abs/2510.06922
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fd31859667576421e72efb2757527789b8ffa48683feda5294616f2cfb29d87e
2026-01-13T00:00:00-05:00
A quantum N-dimer model
arXiv:2510.07543v2 Announce Type: replace Abstract: We study a quantum version of the $n$-dimer model from statistical mechanics, based on the formalism from quantum topology developed by Reshetikhin and Turaev (the latter which, in particular, can be used to construct the Jones polynomial of a knot in $\mathbb{R}^3$)....
https://arxiv.org/abs/2510.07543
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74bd5fc4a7683f84672ba4d2b9cd83423832186b76de4a8d2c3c66c80395fdaf
2026-01-13T00:00:00-05:00
Metaplectic time-frequency representations
arXiv:2510.09322v3 Announce Type: replace Abstract: Time-frequency representations stemmed in 1932 with the introduction of the Wigner distribution. For most of the 20th century, research in this area primarily focused on defining joint probability distributions for position and momentum in quantum mechanics. Applicati...
https://arxiv.org/abs/2510.09322
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04465aaff4ee60ccaa446a8382da9552c46356e1f4a2d42e270f9e25858ed233
2026-01-13T00:00:00-05:00
Elliptic Harnack inequalities for mixed local and nonlocal $p$-energy form on metric measure spaces
arXiv:2510.12404v2 Announce Type: replace Abstract: In the context of metric measure spaces, we introduce an axiomatic formulation of mixed local and nonlocal $p$-energy forms. Within this framework, we use the Poincar\'{e} inequality, the cutoff Sobolev inequality, and mild assumptions on the jump measure to establish...
https://arxiv.org/abs/2510.12404
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d69667e0020b92125fbaffa3370b3801f7e602f9008e7583b8eb0f5f16115a84
2026-01-13T00:00:00-05:00
Approximation by elements of finite spectra for C* Algebras of higher real rank
arXiv:2510.17271v3 Announce Type: replace Abstract: In this article, we extend a well known result about real rank zero C* Algebras to higher real rank C* Algebras. The main technique used here is similar to the method in which we approximate continuous functions using projections. What we reach at the end, is similar ...
https://arxiv.org/abs/2510.17271
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18ca9ffeeeb21015774b35c88652dd643da6a27c04241aa27c31f2572e165564
2026-01-13T00:00:00-05:00
Twisted commutativity and conjugacy ratio in groups
arXiv:2510.18980v2 Announce Type: replace Abstract: In this paper we introduce and study the degree of twisted commutativity and the twisted conjugacy ratio of a finitely generated group $G$. The degree of twisted commutativity $\mathrm{tdc}_X(\varphi, G)$ generalises the degree of commutativity of $G$, by measuring th...
https://arxiv.org/abs/2510.18980
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1625aaa0e6ef8240d9bebd4c93c3f13781d1056813c2d23ea9778d0baededc50
2026-01-13T00:00:00-05:00
On $2n+4$ normals conjecture for convex polytopes in $\mathbb{R}^n$
arXiv:2510.22695v2 Announce Type: replace Abstract: We prove that for $n>3$ each generic simple polytope in $\mathbb{R}^n$ contains a point with at least $2n+4$ emanating normals to the boundary. This result is a piecewise-linear counterpart of a long-standing problem about normals to smooth convex bodies.
https://arxiv.org/abs/2510.22695
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4e2e4ed6d33db8f8da4a4d4eeb617295f8ad52a0b15bc105f7f0196864f00b85
2026-01-13T00:00:00-05:00
Monomial algebras and G_a^n-equivariant embeddings into toric varieties
arXiv:2510.22820v2 Announce Type: replace Abstract: An induced additive action on a projective variety X in P^n is a regular action of the group G_a^n on X with an open orbit that can be extended to a regular action on P^n. Such actions are described with pairs (A, U), where A is a local algebra and U is a generating s...
https://arxiv.org/abs/2510.22820
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b33373e8edb5038c73afb6f6c3a7ebf1d32cbd984c4afa7b792cc883ef31dcb5
2026-01-13T00:00:00-05:00
Injective envelopes of $C^*$-algebras as maximal rigid multiplier covers
arXiv:2510.24441v3 Announce Type: replace Abstract: We present a non-commutative analogue of B{\l}aszczyk's elegant two-step construction of the Gleason cover: first maximise irreducibility, then compactify. The key insight is that extremal disconnectedness (respectively, injectivity) emerges naturally from a maximalit...
https://arxiv.org/abs/2510.24441
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504cd1f2af9388ba681fa49c791e7e2186f6dda20d39a3f96126fe4112191e77
2026-01-13T00:00:00-05:00
Modular Periodicity of Random Initialized Recurrences
arXiv:2510.24882v4 Announce Type: replace Abstract: Classical studies of the Fibonacci sequence focus on its periodicity modulo $m$ (the Pisano periods) with canonical initialization. We investigate instead the complete periodic structure arising from all $m^2$ possible initializations in $\mathbb{Z}/m\mathbb{Z}$. We d...
https://arxiv.org/abs/2510.24882
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e0b828225db132d56219f6913862e18dd79f658e9a244bbab6700e315969c28f
2026-01-13T00:00:00-05:00
The product measures of cross $t$-intersecting families
arXiv:2510.26642v2 Announce Type: replace Abstract: We investigate the product measures of intersection problems in extremal combinatorics. Invoking a recent result of He--Li--Wu--Zhang, we prove that for any $ n \geq t \geq 3$ and $ p_1, p_2 \in (0, \frac{1}{t+1})$, if $ \mathcal{F}_1, \mathcal{F}_2 \subseteq 2^{[n]}$...
https://arxiv.org/abs/2510.26642
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99659768f667b7d4e765064409682f0305c1354e06efdf0a3227d1048c908f10
2026-01-13T00:00:00-05:00
Forget BIT, It is All about TOKEN: Towards Semantic Information Theory for LLMs
arXiv:2511.01202v2 Announce Type: replace Abstract: Large language models (LLMs) have demonstrated remarkable capabilities in numerous real-world applications. While the vast majority of research conducted from an experimental perspective is progressing rapidly, it demands substantial computational power, data, and oth...
https://arxiv.org/abs/2511.01202
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a75891eba5bb50126d4662670fa4f17fa33dfe5e0ff6b211693c4ef24fe4bdd4
2026-01-13T00:00:00-05:00
Lectures on local theta correspondence
arXiv:2511.07849v2 Announce Type: replace Abstract: This set of lecture notes on local theta correspondence is the written version of a mini-course the author gave in March of 2025 for the program ``Representation Theory and Noncommutative Geometry" at the Institut Henri Poincar\'e, Paris. The emphasis is on the Archim...
https://arxiv.org/abs/2511.07849
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a4438fb124215566d3be924556e6e72210f27fe744c3d4d0fb508a445979ee54
2026-01-13T00:00:00-05:00
Conditional stability in determining source terms of semilinear parabolic partial differential equations
arXiv:2511.08460v3 Announce Type: replace Abstract: We study an inverse source problem for a semilinear parabolic equation in a bounded domain, where the nonlinearity depends on the unknown function and its gradient through a quadratic reaction term and a Burgers-type convection term. From partial boundary observation ...
https://arxiv.org/abs/2511.08460
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1cee9108ccf87466cc5ac152be7ee316741d4b0c71bd3fcec754ad9599ebbc01
2026-01-13T00:00:00-05:00
Instantaneous Type I blow-up and non-uniqueness of smooth solutions of the Navier-Stokes equations
arXiv:2511.09556v2 Announce Type: replace Abstract: For any smooth, divergence-free initial data, we construct a solution of the Navier--Stokes equations that exhibits Type~I blow-up of the $L^\infty$ norm at time $T_*>0$, while remaining smooth in space and time on $\mathbb T^d\times([0,T]\setminus\{T_*\})$. An instan...
https://arxiv.org/abs/2511.09556
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4c2095c86df09b2978a4709f5fb8cff9092727e98050bf62bcbd45a5817bd85f
2026-01-13T00:00:00-05:00
Surface homeomorphisms with big rotation set
arXiv:2511.15220v2 Announce Type: replace Abstract: This article consists in applications of [arXiv:2511.14232] in the case of homemomorphisms of higher genus surfaces whose homological rotation set is big enough -- a class of dynamics that is open. We first prove a structure theorem for the rotation set of such homeom...
https://arxiv.org/abs/2511.15220
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70fc1ca8e210aacf0ad494df388f447924a254984529cdca8d353766f6ddcd13
2026-01-13T00:00:00-05:00
A Stochastic Approach to the Definition of the Path Integral Measure
arXiv:2511.15772v3 Announce Type: replace Abstract: We to define a Path Integral in Lorentzian time by restricting the relevant domain of integration on $C([0,1],M)$ over a Riemannian configuration manifold $(M,g)$ and considering the dynamics of a particle evolving between to fixed endpoints with a referential non-deg...
https://arxiv.org/abs/2511.15772
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e7e420d6910f242eb14c13715c6f0c04966248b76bb2b0c88e9d663159374cc1
2026-01-13T00:00:00-05:00
Optimal local central limit theorems on Wiener chaos
arXiv:2511.21496v2 Announce Type: replace Abstract: This paper investigates a local central limit theorem for a normalized sequence of random variables belonging to a fixed order Wiener chaos and converging to the standard normal distribution. We prove, without imposing any additional conditions, that the optimal rate ...
https://arxiv.org/abs/2511.21496
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61ec9d7c45eaab0c56b0df925ef666932084b7e5be9108582a0c5604d81609b0
2026-01-13T00:00:00-05:00
Logistic elliptic and parabolic problem for the fractional $p$-Laplacian
arXiv:2511.23272v2 Announce Type: replace Abstract: In this paper we prove existence, uniqueness of weak solutions of the following nonlocal nonlinear logistic equation \begin{equation*} \begin{cases} (-\Delta)_p^s u_\lambda=\lambda u_\lambda^q - b(x)u_\lambda^r \quad \text{in} \;\Omega,\\ u_\lambda=0 \quad \text{in} \...
https://arxiv.org/abs/2511.23272
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e180319abba3fce969749347e278cfe66adec0e2d9d8e925046c267a28ce939d
2026-01-13T00:00:00-05:00
Nonsmooth bifurcations in families of one-dimensional piecewise-linear quasiperiodically forced maps
arXiv:2512.04234v2 Announce Type: replace Abstract: We study nonsmooth bifurcations of four types of families of one-dimensional quasiperiodically forced maps of the form $F_i(x,\theta) = (f_i(x,\theta), \theta+\omega)$ for $i=1,\dots,4$, where $x$ is real, $\theta\in\mathbb{T}$ is an angle, $\omega$ is an irrational f...
https://arxiv.org/abs/2512.04234
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5ac1a9f7b18dc9df0991716bcbd83c2adaa45b7f92e27c9df5ed8252b0b6e070
2026-01-13T00:00:00-05:00
A poset representation for stable contracts in a two-sided market generated by integer choice functions
arXiv:2512.05942v2 Announce Type: replace Abstract: Generalizing a variety of earlier problems on stable contracts in two-sided markets, Alkan and Gale introduced in 2003 a general stability model on a bipartite graph $G=(V,E)$ in which the vertices are interpreted as ``agents'', and the edges as possible ``contract'' ...
https://arxiv.org/abs/2512.05942
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52c0138266121a9cdbf4f203a082cd4a27278bba9e2e63d8229cd4f014383325
2026-01-13T00:00:00-05:00
Spoke topological Hochschild homology
arXiv:2512.11338v2 Announce Type: replace Abstract: Fix primes $p$ and $\ell$, and let $C_p$ be the cyclic group of order $p$. We compute the $C_p$-equivariant spoke topological Hochschild homology of $\underline{\mathbb{F}}_{\ell}$ and prove it exhibits a form of B\"okstedt periodicity. Here spoke topological Hochschi...
https://arxiv.org/abs/2512.11338
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44e33259219807e9bc6aeaeb64c7a01ce6d91162fe553fa0f4e27f6e58f12d62
2026-01-13T00:00:00-05:00
Decomposition theorems for unmatchable pairs in groups and field extensions
arXiv:2512.12942v2 Announce Type: replace Abstract: A theory of matchings for finite subsets of an abelian group, introduced in connection with a conjecture of Wakeford on canonical forms for symmetric tensors, has since been extended to the setting of field extensions and to that of matroids. Earlier approaches have p...
https://arxiv.org/abs/2512.12942
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122ff14fa196f21907642d0beac4c8dc1c35dca0d1e4ed115c1d3756c836a93d
2026-01-13T00:00:00-05:00
Ensemble Parameter Estimation for the Lumped Parameter Linear Superposition (LPLSP) Framework: A Rapid Approach to Reduced-Order Modeling for Transient Thermal Systems
arXiv:2512.14467v2 Announce Type: replace Abstract: This work introduces an ensemble parameter estimation framework that enables the Lumped Parameter Linear Superposition (LPLSP) method to generate reduced order thermal models from a single transient dataset. Unlike earlier implementations that relied on multiple param...
https://arxiv.org/abs/2512.14467
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7cc919124fca9db0fc0c91857074c104fae0437f6353e69d6c5631d20b296d55
2026-01-13T00:00:00-05:00
Using the Jones Polynomial to Prove Infinite Families of Knots Satisfy the Cosmetic Surgery Conjecture
arXiv:2512.20511v2 Announce Type: replace Abstract: This paper computes the Jones polynomial and the invariants obstructing cosmetic surgery which are derived from it for two infinite families of knots, proving they satisfy the Purely Cosmetic Surgery Conjecture. Both the method of computation and the method for genera...
https://arxiv.org/abs/2512.20511
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0a18b93f501ca45c9da46c34071ae1f3e070e56bd5582979ae6fe42dd32e9e6b
2026-01-13T00:00:00-05:00
Relation between generalized and ordinary cluster algebras
arXiv:2512.21062v2 Announce Type: replace Abstract: Recently, Ramos and Whiting showed that any generalized cluster algebra of geometric type is isomorphic to a quotient of a subalgebra of a certain cluster algebra. Based on their idea and method, we show that the same property holds for any generalized cluster algebra...
https://arxiv.org/abs/2512.21062
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f2872660dd84938eb729ed35a2d33874ec0f28b6be102acff4352b59bb52aee9
2026-01-13T00:00:00-05:00
On Rayleigh scattering in the massless Nelson model
arXiv:2512.21307v2 Announce Type: replace Abstract: Asymptotic completeness of Rayleigh scattering in models of atoms and molecules of non-relativistic QED is expected, but for a proof we still lack sufficient control on the number of emitted soft photons. So far, this obstacle has only been overcome for the spin-boson...
https://arxiv.org/abs/2512.21307
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b82087d526fea92f8873c1d88f1cdffe0fcf6b63a76aad106ee076f5b31a1433
2026-01-13T00:00:00-05:00
Data-Free Asymptotics-Informed Operator Networks for Singularly Perturbed PDEs
arXiv:2512.22006v2 Announce Type: replace Abstract: Recent advances in machine learning (ML) have opened new possibilities for solving partial differential equations (PDEs), yet robust performance in challenging regimes remains limited. In particular, singularly perturbed differential equations exhibit sharp boundary o...
https://arxiv.org/abs/2512.22006
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a485ed917d3d1989390a0abee97e57e2564d5838a7e4bea213eee61c5f97d239
2026-01-13T00:00:00-05:00
Generalized binomial edge ideals are Cartwright-Sturmfels
arXiv:2512.22012v2 Announce Type: replace Abstract: Binomial edge ideals associated to a simple graph G were introduced by Herzog and collaborators and, independently, by Ohtani. They became an ``instant classic" in combinatorial commutative algebra with more than 100 papers devoted to their investigation over the past...
https://arxiv.org/abs/2512.22012
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681c9052ed5e1d12966b7ea2a5d18c32bd5eada10abcecd867f7687b1290a2d1
2026-01-13T00:00:00-05:00
Infinitesimal moments in free and c-free probability and Motzkin paths
arXiv:2512.22700v3 Announce Type: replace Abstract: Infinitesimal moments associated with infinitesimal freeness and infinitesimal conditional freeness are studied. For free random variables, we consider continuous deformations of moment functionals associated with Motzkin paths $w$, which provide a decomposition of th...
https://arxiv.org/abs/2512.22700
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6a55294ecc21e795f64be92a2408d56bf5879ddbdf1141409dbccc3ce98dc6ba
2026-01-13T00:00:00-05:00
Small-time global controllability of a class of bilinear fourth-order parabolic equations
arXiv:2512.23339v2 Announce Type: replace Abstract: In this work, we investigate the small-time global controllability properties of a class of fourth-order nonlinear parabolic equations driven by a bilinear control posed on the one-dimensional torus. The controls depend only on time and act through a prescribed family...
https://arxiv.org/abs/2512.23339
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9d816fdc3b1729077f1e3575d2aa9e273e2896010b901d5612255ec3125be7a6
2026-01-13T00:00:00-05:00
Completeness and reflexivity type properties of $B_1(X)$
arXiv:2601.00733v2 Announce Type: replace Abstract: For a Tychonoff space $X$, $B_1(X)$ denotes the space of all Baire-one functions on $X$ endowed with the pointwise topology. We prove that the following assertions are equivalent: (1) $B_1(X)$ is a (semi-)Montel space, (2) $B_1(X)$ is a (semi-)reflexive space, (3) $B_...
https://arxiv.org/abs/2601.00733
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8970800dfc47168fc0e7aed38a01d63a6b2d3034e3652856321c1f5d542e1926
2026-01-13T00:00:00-05:00
Characterizations of harmonic quasiregular mappings in function spaces
arXiv:2601.01017v2 Announce Type: replace Abstract: We study conjugate-type phenomena for complex-valued harmonic quasiregular mappings in the unit disk across three function space families: $Q(n,p,\alpha)$, $F(p,q,s)$, and the non-derivative $M(p,q,s)$. For a harmonic $K$-quasiregular mapping $f=u+iv$, we first show t...
https://arxiv.org/abs/2601.01017
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4b0b7fa5026f9a4a29c999375a59373c259b02971ad37bcaa23cdf8bcbd885bf
2026-01-13T00:00:00-05:00
Notes on Poisson deformations of symplectic varieties
arXiv:2601.01131v2 Announce Type: replace Abstract: In this article we give corrections and addendum to the article ``Flops and Poisson deformations of symplectic varieties, Publ. Res. Inst. Math. Sci. {\bf 44} (2008) 259 - 314''.
https://arxiv.org/abs/2601.01131
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3e7f1c196c50220f46b304fe5ab44cfdab3ad57cbf3afcd5a90cb2744eda89c9
2026-01-13T00:00:00-05:00
Stochastic Control Methods for Optimization
arXiv:2601.01248v2 Announce Type: replace Abstract: In this work, we investigate a stochastic control framework for global optimization over both Euclidean spaces and the Wasserstein space of probability measures, where the objective function may be non-convex and/or non-differentiable. In the Euclidean setting, the or...
https://arxiv.org/abs/2601.01248
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7e4a610073f9813394f83b25ada7375a9575ab42fd30ea302b6f957f68c9b430
2026-01-13T00:00:00-05:00
On Hahn-Banach smoothness of $L_1$-preduals and related $w^*-w$ point of continuity of unit balls of dual spaces
arXiv:2601.01567v2 Announce Type: replace Abstract: In this article, we intend to study possible $(U)$-embeddings of a Banach space $X$ into $X^{**}$. The canonical embedding of $X$ in $X^{**}$ which possesses $(U)$-embedding is of particular interest and such spaces are known as Hahn-Banach smooth spaces. Separable $L...
https://arxiv.org/abs/2601.01567
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e4681d30d4f4f4d907972a8233a575516bc20bcd4c559acc3f62385a7a59a4eb
2026-01-13T00:00:00-05:00
On a Smoothed Dirichlet Divisor Problem
arXiv:2601.01905v2 Announce Type: replace Abstract: Hardy showed that $\sum_{n \ioe x}\tau(n)-x(\log x +2\gamma -1)$ is not $o(x^{1/4})$. In this article, we prove that $\sum_{n \ioe x}\tau(n)(1-\frac{x}{n})-xP(\log x)=\frac{1}{4}+O \left( \frac{\log x}{x^{1/4}} \right)$, where $P$ is a polynomial of degree 2. As a cor...
https://arxiv.org/abs/2601.01905
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53c77d4148ef3fb8925daf022f54bf3865a667b8787fd96949a74f9c96e81f28
2026-01-13T00:00:00-05:00
On the sizes of the maximal prime powers divisors of factorials
arXiv:2601.03414v2 Announce Type: replace Abstract: Let p be any prime, and $p^(\nu_p(n!))$ the maximal power of $p$ dividing $n!$. It is proved that there exists a positive integer $n_0$, which depends only on $p$, such that $q^(\nu_q(n!)) p$. For twin primes $p$ and $q = p + 2$ it is proved that the minimal $n_0$ sat...
https://arxiv.org/abs/2601.03414
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66f166cf7ae36827dee25ddf04edc40a74ced5324ebf6c39f4db7eca8ec51acd
2026-01-13T00:00:00-05:00
Mean-field limits for interacting particle systems on general adaptive dynamical networks
arXiv:2601.03742v2 Announce Type: replace Abstract: We study the large-population limit of interacting particle systems evolving on adaptive dynamical networks, motivated in particular by models of opinion dynamics. In such systems, agents interact through weighted graphs whose structure evolves over time in a coupled ...
https://arxiv.org/abs/2601.03742
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2b6247397b77f7adc82fec8c2448fcf8dc661c8fa7d2664e4398bcb0fa5c537c
2026-01-13T00:00:00-05:00
Notes on Ecalle's and Brown's solutions to the double shuffle relations modulo products
arXiv:2601.03828v2 Announce Type: replace Abstract: We investigate relationships between polar/polynomial solutions to the double shuffle relations modulo products, which were independently introduced by Brown and Ecalle.
https://arxiv.org/abs/2601.03828
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910ce1d0713d7e7b3cfa1fd621ca8cd67382dd942b3aa557a1b3e6bc2cf44ff7
2026-01-13T00:00:00-05:00
The Feldman-H\'ajek Dichotomy for Countable Gaussian Mixtures and their Asymptotic Separability in High Dimensions
arXiv:2601.03911v2 Announce Type: replace Abstract: This paper establishes the theoretical foundations for the asymptotic separability of Gaussian Mixture Models (GMMs) in high dimensions by extending the classical Feldman-H\'ajek theorem. We first prove that a countable mixture of Gaussian measures is a well-defined p...
https://arxiv.org/abs/2601.03911
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712ba2c96da427cb5b72d6a6b35511fe57ed762845a974feeaa77b6792370cc8
2026-01-13T00:00:00-05:00
Non-Existence of Linear-Quartic Factorization for the Second Cuboid Quintic
arXiv:2601.04241v2 Announce Type: replace Abstract: Let $Q_{p,q}(t)\in\mathbb{Z}[t]$ be Sharipov's even monic degree-$10$ second cuboid polynomial depending on coprime integers $p\neq q>0$. Writing $Q_{p,q}(t)$ as a quintic in $t^{2}$ produces an associated monic quintic polynomial. After the weighted normalization $r=...
https://arxiv.org/abs/2601.04241
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8c95866b326d0db453ed8a64dfaa3362fab394cc93921faa50ff5906142f84d5
2026-01-13T00:00:00-05:00
Sobre los teoremas de Shafarevich y Siegel
arXiv:2601.04284v2 Announce Type: replace Abstract: Presentaremos una nueva demostraci\'on del teorema de Shafarevich sobre finitud de curvas el\'ipticas con buena reducci\'on fuera de un conjunto finito de primos dado. Esto da un nuevo punto de entrada a teoremas fundamentales de finitud diofantina tales como el teore...
https://arxiv.org/abs/2601.04284
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482ddadf0114032269930d778119539239ec085b2267007cd6426a10411d51be
2026-01-13T00:00:00-05:00
Infinitesimal Variations of Hodge Structure for Singular Curves I
arXiv:2601.04410v2 Announce Type: replace Abstract: We study the infinitesimal variation of Hodge structure associated with families of reduced algebraic curves with singularities. The analysis applies to curves beyond the nodal case and is not restricted to plane curves, encompassing curves lying on smooth projective ...
https://arxiv.org/abs/2601.04410
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cf7bf1a3955aaf0c12b8462c6164e788e5ee528f81c3b06cc774dbaffca7e519
2026-01-13T00:00:00-05:00
Automorphic vector-forms using the Cohn-Elkies magic functions
arXiv:2601.04704v2 Announce Type: replace Abstract: In this study, we introduce the theory of what we call Hecke vector-forms. A Hecke vector-form can be viewed as a vector function representation of some quasiautomorphic form that transforms like an automorphic form on an arbitrarily chosen Hecke triangle group. In ot...
https://arxiv.org/abs/2601.04704
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93d9fe3c63aec265d13ffc535bfd5f91480f07f5de0bfe3e7b20dcf8b9121481
2026-01-13T00:00:00-05:00
Spectral Properties of $ C_{0}$-Semigroups of Positive Operators on C$^*$-Algebras
arXiv:2601.05025v2 Announce Type: replace Abstract: Let $ (T(t))_{t\geq0} $ be a positive $C_{0}$-semigroup with generator $A$ on a C$^*$-algebra or on the predual of a W$^*$-algebra. Then the growth bound $\omega_{0}$ equals $s(A)$. If the spectrum of $A$ is not empty, then $s(A)$, the spectral bound of $A$, is a spec...
https://arxiv.org/abs/2601.05025
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bef51e97f3c382e2ef3f3eaabe1c444def25bb837c88b4a677aac2f9c942665a
2026-01-13T00:00:00-05:00
Information-Theoretic Limits on Exact Subgraph Alignment Problem
arXiv:2601.05173v2 Announce Type: replace Abstract: The graph alignment problem aims to identify the vertex correspondence between two correlated graphs. Most existing studies focus on the scenario in which the two graphs share the same vertex set. However, in many real-world applications, such as computer vision, soci...
https://arxiv.org/abs/2601.05173
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83332478e4502e5929ed33d41c2ada7d8d0d6d700f67c4516775d53655864727
2026-01-13T00:00:00-05:00
Markovian Compression: Looking to the Past Helps Accelerate the Future
arXiv:2601.05398v2 Announce Type: replace Abstract: This paper deals with distributed optimization problems that use compressed communication to achieve efficient performance and mitigate communication bottleneck. We propose a family of compression schemes in which operators transform vectors fed to their input accordi...
https://arxiv.org/abs/2601.05398
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73bed4702029bfc2c052d4fcb7282cda122911f24d3334fc35b40b882f3d4b19
2026-01-13T00:00:00-05:00
The B\'enabou-Roubaud theorem via string diagrams
arXiv:2601.05691v2 Announce Type: replace Abstract: We give a complete proof of the B\'enabou-Roubaud monadic descent theorem using the graphical calculus of string diagrams. Our proof links the monadic and Grothendieck's original viewpoint on descent via an internal-category-based characterization of the category of d...
https://arxiv.org/abs/2601.05691
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9c93fe150be74d1a58475a4ef30fe23e0ec4d04abea2fb2c5432226cbbf47d39
2026-01-13T00:00:00-05:00
Approximating Persistent Homology for Large Datasets
arXiv:2204.09155v3 Announce Type: replace-cross Abstract: Persistent homology is an important methodology in topological data analysis which adapts theory from algebraic topology to data settings. Computing persistent homology produces persistence diagrams, which have been successfully used in diverse domains. Despite ...
https://arxiv.org/abs/2204.09155
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c8043f7a240679359f453591766481787e9935626b9097ea47d8bf308fbd3db3
2026-01-13T00:00:00-05:00
Field Theory Equivalences as Spans of $L_\infty$-algebras
arXiv:2305.05473v3 Announce Type: replace-cross Abstract: Semi-classically equivalent field theories are related by a quasi-isomorphism between their underlying $L_\infty$-algebras, but such a quasi-isomorphism is not necessarily a homotopy transfer. We demonstrate that all quasi-isomorphisms can be lifted to spans of ...
https://arxiv.org/abs/2305.05473
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5710fc49b4bd55762d8fc66e819ee1d2953c2d13e1f8e441a305e012c8633d4a
2026-01-13T00:00:00-05:00
Asymptotic Error Analysis of Multilevel Stochastic Approximations for the Value-at-Risk and Expected Shortfall
arXiv:2311.15333v4 Announce Type: replace-cross Abstract: Cr\'epey, Frikha, and Louzi (2023) introduced a nested stochastic approximation algorithm and its multilevel acceleration to compute the value-at-risk and expected shortfall of a random financial loss. We hereby establish central limit theorems for the renormali...
https://arxiv.org/abs/2311.15333
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15f6fc6f8f7ef027a8585d7417d39cdc81751f68d417a03629b90d80b4475dbe
2026-01-13T00:00:00-05:00
Learning Operators with Stochastic Gradient Descent in General Hilbert Spaces
arXiv:2402.04691v4 Announce Type: replace-cross Abstract: This study investigates leveraging stochastic gradient descent (SGD) to learn operators between general Hilbert spaces. We propose weak and strong regularity conditions for the target operator to depict its intrinsic structure and complexity. Under these conditi...
https://arxiv.org/abs/2402.04691
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0b8537b985e86821720df994f9ffda1b12fb97dd08c70b313e0b7dc871664bad
2026-01-13T00:00:00-05:00
$\texttt{skwdro}$: a library for Wasserstein distributionally robust machine learning
arXiv:2410.21231v2 Announce Type: replace-cross Abstract: We present skwdro, a Python library for training robust machine learning models. The library is based on distributionally robust optimization using Wasserstein distances, popular in optimal transport and machine learnings. The goal of the library is to make the ...
https://arxiv.org/abs/2410.21231
Academic Papers
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1f462b6c4868f382cbd84f9c78d398d378f496f06e9721159cf90dd6dd2bac34
2026-01-13T00:00:00-05:00
Schmidt Decomposition of Multipartite States
arXiv:2411.02473v4 Announce Type: replace-cross Abstract: Quantum states can be written in infinitely many ways depending on the choices of basis. Schmidt decomposition of a quantum state has a lot of properties useful in the study of entanglement. All bipartite states admit Schmidt decomposition, but this does not ext...
https://arxiv.org/abs/2411.02473
Academic Papers
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682cd0ec8445eaac82b904e7c0dca8dfa91f012c3017f7156812d4c88eb82591
2026-01-13T00:00:00-05:00
Point processes with event time uncertainty
arXiv:2411.02694v2 Announce Type: replace-cross Abstract: Point processes are widely used statistical models for continuous-time discrete event data, such as medical records, crime reports, and social network interactions, to capture the influence of historical events on future occurrences. In many applications, howeve...
https://arxiv.org/abs/2411.02694
Academic Papers
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795788bebfa78924fd00dead91afb97d51d26127debb1bd70e95e13bb93d265d
2026-01-13T00:00:00-05:00
Color symmetry and ferromagnetism in Potts spin glass
arXiv:2412.20607v2 Announce Type: replace-cross Abstract: We consider the Potts spin glass with additional ferromagnetic interaction parametrized by $t$. It has long been observed that the Potts color symmetry breaking for the spin glass order parameter is closely related to the ferromagnetic phase transition. To clari...
https://arxiv.org/abs/2412.20607
Academic Papers
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54d20088c80156be1b133f1020d47bcca0ccea8545f4f7741a2f889a6b22ae49
2026-01-13T00:00:00-05:00
Coverage and Spectral Efficiency of NOMA-Enabled LEO Satellite Networks with Ordering Schemes
arXiv:2501.05946v2 Announce Type: replace-cross Abstract: This paper investigates an analytical model for low-earth orbit (LEO) multi-satellite downlink non-orthogonal multiple access (NOMA) networks. The satellites transmit data to multiple NOMA user terminals (UTs), each employing successive interference cancellation...
https://arxiv.org/abs/2501.05946
Academic Papers
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09f4a84676f10cf17d5fa084e459c1472d13668d4667a2969d84d02dca815bf1
2026-01-13T00:00:00-05:00
Ordinary Least Squares as an Attention Mechanism
arXiv:2504.09663v2 Announce Type: replace-cross Abstract: I show that ordinary least squares (OLS) predictions can be rewritten as the output of a restricted attention module, akin to those forming the backbone of large language models. This connection offers an alternative perspective on attention beyond the conventio...
https://arxiv.org/abs/2504.09663
Academic Papers
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5810134f6d6f347eb502bcf65263f8e832863fac956687f312ab755de63dd013
2026-01-13T00:00:00-05:00
SAD Neural Networks: Divergent Gradient Flows and Asymptotic Optimality via o-minimal Structures
arXiv:2505.09572v3 Announce Type: replace-cross Abstract: We study gradient flows for loss landscapes of fully connected feedforward neural networks with commonly used continuously differentiable activation functions such as the logistic, hyperbolic tangent, softplus or GELU function. We prove that the gradient flow ei...
https://arxiv.org/abs/2505.09572
Academic Papers
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c45aadf927752a58e4a4f62ba580709bea1589fbbd5e393eebf2d62381a69d96
2026-01-13T00:00:00-05:00
Efficient Online Random Sampling via Randomness Recycling
arXiv:2505.18879v3 Announce Type: replace-cross Abstract: This article studies the fundamental problem of using i.i.d. coin tosses from an entropy source to efficiently generate random variables $X_i \sim P_i$ $(i \ge 1)$, where $(P_1, P_2, \dots)$ is a random sequence of rational discrete probability distributions sub...
https://arxiv.org/abs/2505.18879
Academic Papers
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693732402b0b62bf424bd141f41f48ae5e8bd7b3130cc3d1ceed29cde4d59ef2
2026-01-13T00:00:00-05:00
Conformable Scaling and Critical Dynamics: A Unified Framework for Phase Transitions
arXiv:2507.11782v2 Announce Type: replace-cross Abstract: We investigate the application of conformable derivatives to model critical phenomena near continuous phase transitions. By incorporating a deformation parameter into the differential structure, we derive unified expressions for thermodynamic observables such as...
https://arxiv.org/abs/2507.11782
Academic Papers
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