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f42973ce99eaf1a86307743b5536ad8b07a979fb00af2a2a4d275fd5318c40c6
2026-01-21T00:00:00-05:00
A Quadratically-Constrained Convex Approximation for the AC Optimal Power Flow
arXiv:2501.05623v2 Announce Type: replace Abstract: We introduce a quadratically-constrained approximation (QCAC) of the AC optimal power flow (AC-OPF) problem. Unlike existing approximations like the DC-OPF, our model does not rely on typical assumptions such as high reactance-to-resistance ratio, near-nominal voltage...
https://arxiv.org/abs/2501.05623
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e0f441914a6435eb716f51d8e0fd58bcc7601f2a445be12cd5f3a8b202aa5287
2026-01-21T00:00:00-05:00
Positive solutions for fractional-order boundary value problems with or without dependence of integer-order ones
arXiv:2501.05810v2 Announce Type: replace Abstract: We investigate the existence, non-existence, uniqueness, and multiplicity of positive solutions to the following problem: \begin{align}\label{P} \left\{ \begin{array}{l} D_{0+}^\alpha u + h(t)f(u) = 0, \quad 0<1, \\[1ex] u(0)=u(1)=0, \end{array} \right. \end{align} wh...
https://arxiv.org/abs/2501.05810
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442b03a8e011cef1c0bd53dcdfb975e3c628d053de609d2f14c162724f07b947
2026-01-21T00:00:00-05:00
The Born approximation for the fixed energy Calder\'on problem
arXiv:2501.05889v2 Announce Type: replace Abstract: The Born approximation of a potential in the context of the Calder\'on inverse problem is an object that can be formally defined in terms of spectral data of the Dirichlet-to-Neumann map of the corresponding Schr\"odinger operator. In this article, we prove, in the ca...
https://arxiv.org/abs/2501.05889
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ec60192ea71d7d1ed0c37181f7ea69b036b1387408781b9ec34339e5733364b6
2026-01-21T00:00:00-05:00
Eco-evolutionary dynamics of a trait-structured predator-prey model
arXiv:2501.07379v3 Announce Type: replace Abstract: The coupling between evolutionary and ecological changes (eco-evolutionary dynamics) has been shown to be relevant among diverse species, and is also of interest outside of ecology, i.e. in cancer evolution. These dynamics play an important role in determining surviva...
https://arxiv.org/abs/2501.07379
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990a1a6547e7449eda7d41ba6714f9fad6cb7d034aa4c151d6b887e6d2bc7042
2026-01-21T00:00:00-05:00
Asymptotic-Preserving Neural Networks based on Even-odd Decomposition for Multiscale Gray Radiative Transfer Equations
arXiv:2501.08166v2 Announce Type: replace Abstract: We present a novel Asymptotic-Preserving Neural Network (APNN) approach utilizing even-odd decomposition to tackle the nonlinear gray radiative transfer equations (GRTEs). Our AP loss demonstrates consistent stability concerning the small Knudsen number, ensuring the ...
https://arxiv.org/abs/2501.08166
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efb4389f7f5b0c23a994a707534a96b23d53c6bf1fc6012b6c6a152d6bd1b3d2
2026-01-21T00:00:00-05:00
Stable determination of the potential for the Helmholtz equation in the high frequency limit from boundary measurements
arXiv:2501.10751v2 Announce Type: replace Abstract: We establish a triple logarithmic stability estimate of determining the potential in a Helmholtz equation from a partial Dirichlet-to-Neumann map in the high frequency limit. This estimate is proved under the assumption that the potential is known near the boundary of...
https://arxiv.org/abs/2501.10751
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bf1784806c8e799b7319ac9c795e21e07ab403ee45800e0ccfea4f76c36bff69
2026-01-21T00:00:00-05:00
D2D Coded Caching Schemes for Multiaccess Networks with Combinatorial Access Topology
arXiv:2501.10756v2 Announce Type: replace Abstract: This paper considers wireless device-to-device (D2D) coded caching in a multiaccess network, where the users communicate with each other and each user can access multiple cache nodes. Access topologies derived from two combinatorial designs known as the $t$-design and...
https://arxiv.org/abs/2501.10756
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26196cd5d4d0e276af2a86d18d6e14d93b0cb4fdf27a9a0c75acf56c7ed3a752
2026-01-21T00:00:00-05:00
Surfaces with flat normal connection in 4-dimensional space forms
arXiv:2501.15780v3 Announce Type: replace Abstract: Let $N$ be a Riemannian, Lorentzian or neutral $4$-dimensional space form with constant sectional curvature $L_0$. In this paper, noticing the linearly dependent condition, we obtain characterizations of space-like surfaces in $N$ with flat normal connection and paral...
https://arxiv.org/abs/2501.15780
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9597e9ab5744eeb050ddec35b95eba3eaf08342a3a0e1ec57835eba51dd1e9e5
2026-01-21T00:00:00-05:00
A Lyapunov analysis of Korpelevich's extragradient method with fast and flexible extensions
arXiv:2502.00119v2 Announce Type: replace Abstract: We develop a Lyapunov-based analysis of Korpelevich's extragradient method and show that it achieves an $o(1/k)$ last-iterate convergence rate of the constructed Lyapunov function. This Lyapunov function simultaneously upper bounds several standard measures of optimal...
https://arxiv.org/abs/2502.00119
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dcabefac1480c8082b58c4cd004c65ac57c8ed95e22e3ffb83d218c4c3712866
2026-01-21T00:00:00-05:00
Extreme-Scale EV Charging Infrastructure Planning for Last-Mile Delivery Using High-Performance Parallel Computing
arXiv:2502.05152v2 Announce Type: replace Abstract: This paper addresses stochastic charger location and allocation problems under queue congestion for last-mile delivery using electric vehicles (EVs). The objective is to decide where to open charging stations and how many chargers of each type to install, subject to b...
https://arxiv.org/abs/2502.05152
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fb6244aba545c220d2a9971ac0b6bbeb929126e88c545c87256237b29e499559
2026-01-21T00:00:00-05:00
Hankel continued fractions and Hankel determinants for $q$-deformed metallic numbers
arXiv:2502.05993v2 Announce Type: replace Abstract: Fix $n$ a positive integer. Take the $n$-th metallic number $\phi_n=\frac{n+\sqrt{n^2+4}}{2}$ (e.g. $\phi_1$ is the golden number) and let $\Phi_n(q)$ be its $q$-deformation in the sense of S. Morier-Genoud and V. Ovsienko. This is an algebraic continued fraction whic...
https://arxiv.org/abs/2502.05993
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e6aaf8bab054d107d49ded92f46656cd2e353feedb956415daf145b1c74edc61
2026-01-21T00:00:00-05:00
Homeomorphism groups of basilica, rabbit and airplane Julia sets
arXiv:2502.07762v2 Announce Type: replace Abstract: The airplane, the basilica and the Douady rabbit (and, more generally, rabbits with more than two ears) are well-known Julia sets of complex quadratic polynomials. In this paper we study the groups of all homeomorphisms of such fractals and of all automorphisms of the...
https://arxiv.org/abs/2502.07762
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999d1168ec64480921377ca8e801932d68162ec34ffa37782a16ab0ba4c57b0b
2026-01-21T00:00:00-05:00
Newton-Mandelbrot set and Murase-Mandelbrot set
arXiv:2502.14872v2 Announce Type: replace Abstract: We obtain four extended Newton's methods and three extended Mandelbrot's recurrence formulas from the Wasan (Japanese mathematics in the Edo period (1603-1868)). Furthermore, two extended Newton's methods relate to one of the extended Mandelbrot's recurrence formulas....
https://arxiv.org/abs/2502.14872
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d7fd1489872e4ff2a5259fc9c92f4ec69c9f13b2137ebd8cf5da91dad90e279e
2026-01-21T00:00:00-05:00
A Jacobian-free Newton-Krylov method for cell-centred finite volume solid mechanics
arXiv:2502.17217v2 Announce Type: replace Abstract: This study investigates the efficacy of Jacobian-free Newton-Krylov methods in finite-volume solid mechanics. Traditional Newton-based approaches require explicit Jacobian matrix formation and storage, which can be computationally expensive and memory-intensive. In co...
https://arxiv.org/abs/2502.17217
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376589d30d9ebc05dfa48254fd389b9eec82ea03a72c8dd8c5211dd9b4a4a2d5
2026-01-21T00:00:00-05:00
Multiplier modules of Hilbert C*-modules revisited
arXiv:2502.17959v3 Announce Type: replace Abstract: The theory of multiplier modules of Hilbert C*-modules is reconsidered to obtain more properties of these special Hilbert C*-modules. The property of a Hilbert C*-module to be a multiplier C*-module is shown to be an invariant with respect to the consideration as a le...
https://arxiv.org/abs/2502.17959
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4bf92377a06906efbdbfe497883855520281b8957e17be44118e4fb0c048f063
2026-01-21T00:00:00-05:00
Rigidity of the escaping set of certain H\'enon maps
arXiv:2502.19358v3 Announce Type: replace Abstract: Let $H$ be a H\'enon map of the form $H(x,y)=(y,p(y)-ax)$. We prove that the escaping set $U^+$ (or equivalently, the non-escaping set $K^+$), of $H$ is rigid under the actions of automorphisms of $\mathbb{C}^2$ if the degree of $H=d\le |a|$. Specifically, every autom...
https://arxiv.org/abs/2502.19358
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4f0dd5a882ace49ecd8d242d44887a8a0a20113919e90a2b05530789cfe4a35f
2026-01-21T00:00:00-05:00
Zhuk's bridges, centralizers, and similarity
arXiv:2503.03551v2 Announce Type: replace Abstract: This is the second of three papers motivated by the author's desire to understand and explain "algebraically" one aspect of Dmitriy Zhuk's proof of the CSP Dichotomy Theorem. In this paper we extend Zhuk's "bridge" construction to arbitrary meet-irreducible congruence...
https://arxiv.org/abs/2503.03551
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7a4d60870d2e74a042e12e360efb927654d7c26a203ca6b5dab4ebe1e59a70b5
2026-01-21T00:00:00-05:00
A positive product formula of integral kernels of $k$-Hankel transforms
arXiv:2503.03554v4 Announce Type: replace Abstract: The $k$-Hankel transform $F_{k,1}$ (or the $(k,1)$-generalized Fourier transform) is the Dunkl analogue of the unitary inversion operator in the minimal representation of a conformal group initiated by T. Kobayashi and G. Mano. It is one of the two most significant ca...
https://arxiv.org/abs/2503.03554
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1a115dac645159259be73d476f002c4495ba50e5036db3dc1f907b22a152a46f
2026-01-21T00:00:00-05:00
Consecutive Patterns, Kostant's Problem and Type $A_6$
arXiv:2503.07809v2 Announce Type: replace Abstract: For a permutation $w$ in the symmetric group $\mathfrak{S}_{n}$, let $L(w)$ denote the simple highest weight module in the principal block of the BGG category $\mathcal{O}$ for the Lie algebra $\mathfrak{sl}_{n}(\mathbb{C})$. We first prove that $L(w)$ is Kostant nega...
https://arxiv.org/abs/2503.07809
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0792692886f03a9d7a06d156e3917140deb53aa5dd5c92be33a50dcc09e794cf
2026-01-21T00:00:00-05:00
Exotic spherical flexible octahedra and counterexamples to the Modified Bellows Conjecture
arXiv:2503.09582v2 Announce Type: replace Abstract: In 2014 the author showed that in the three-dimensional spherical space, alongside with three classical types of flexible octahedra constructed by Bricard, there exists a new type of flexible octahedra, which was called exotic. In the present paper we give a geometric...
https://arxiv.org/abs/2503.09582
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ea1fe4b42051e878736e9d8d682d24c20f5433ae4b5af9866d91a26547eca850
2026-01-21T00:00:00-05:00
Rigorous analysis of shape transitions in frustrated elastic ribbons
arXiv:2503.11779v2 Announce Type: replace Abstract: Ribbons are elastic bodies of thickness $t$ and width $w$ with $t\ll w\ll 1$ (after appropriate nondimensionalization). Many ribbons in nature have a non-trivial internal geometry, making them incompatible with Euclidean space. This incompatibility -- expressed mathem...
https://arxiv.org/abs/2503.11779
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24731ce9bbe985206a583f47f9bd4c5f3ac26ee348db017998830076da6c0ef3
2026-01-21T00:00:00-05:00
Spanning trees in directed square cycles
arXiv:2503.12561v2 Announce Type: replace Abstract: We classify weakly connected spanning closed (WCSC) subgraphs of $\overrightarrow{C_n^2}$, the square of a directed $n$-vertex cycle. Then we show that every spanning tree of $\overrightarrow{C_n^2}$ is contained in a unique nontrivial WCSC subgraph of $\overrightarro...
https://arxiv.org/abs/2503.12561
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c83ec53f0f5b9089b47ad27129a10596de20b051350412e808992e8997325908
2026-01-21T00:00:00-05:00
Characterising 1-rectifiable metric spaces via connected tangent spaces
arXiv:2503.15159v2 Announce Type: replace Abstract: We prove that in a complete metric space $X$, $1$-rectifiability of a set $E\subset X$ with $\mathcal{H}^1(E)<\infty$ and positive lower density $\mathcal{H}^1$-a.e. is implied by the property that all tangent spaces are connected metric spaces.
https://arxiv.org/abs/2503.15159
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6725c1b94652cd257a44cbd552345b5179fd4f1d5bf6a3c325d5cc7870cec58b
2026-01-21T00:00:00-05:00
Canonical torus action on symplectic singularities
arXiv:2503.15791v3 Announce Type: replace Abstract: We show that any symplectic singularity lying on a smoothable projective symplectic variety locally admits a good action of an algebraic torus of dimension $r \geq 1$, which is canonical. Under mild assumptions, $r=1$ is also confirmed. In particular, it admits (canon...
https://arxiv.org/abs/2503.15791
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7c9f752126f563420dc184f0f172a6ebba0c9861e0d486678f993142dd894424
2026-01-21T00:00:00-05:00
High-dimensional sparse recovery from function samples Decoders, guarantees and instance optimality
arXiv:2503.16209v2 Announce Type: replace Abstract: We investigate the reconstruction of multivariate functions from samples using sparse recovery techniques. For Square Root Lasso, Orthogonal Matching Pursuit, and Compressive Sampling Matching Pursuit, we demonstrate both theoretically and empirically that they allow ...
https://arxiv.org/abs/2503.16209
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9f5efb090d3223a7802fb465e3dd908872e904be2f331ec2a6dd8eeeeaf4008e
2026-01-21T00:00:00-05:00
Two billiard domains whose billiard maps are Lazutkin conjugates are the same
arXiv:2503.19550v3 Announce Type: replace Abstract: This paper aimed to show that two billiards whose billiard maps share the same expression in Lazutkin coordinates are isometric. However, the results are incorrect as they rely on erroneous computations in Lazutkin's book concerning the expansion of the billiard map i...
https://arxiv.org/abs/2503.19550
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356a2db27151b7597e0bee759ae522a5cb5b43fdc0863a141c286200e8550f69
2026-01-21T00:00:00-05:00
The prime number theorem over integers of power-free polynomial values
arXiv:2504.00804v3 Announce Type: replace Abstract: Let $f(x)\in \mathbb{Z}[x]$ be an irreducible polynomial of degree $d\ge 1$. Let $k\ge2$ be an integer. The number of integers $n$ such that $f(n)$ is $k$-free is widely studied in the literature. In principle, one expects that $f(n)$ is $k$-free infinitely often, if ...
https://arxiv.org/abs/2504.00804
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3728976ca68c0f3e608f477b483bbfa192254ed756137b9a754640d565691687
2026-01-21T00:00:00-05:00
A Tail-Respecting Explicit Numerical Scheme for L\'evy-Driven SDEs With Superlinear Drifts
arXiv:2504.07255v2 Announce Type: replace Abstract: We present an explicit numerical approximation scheme, denoted by $\{X^n\}$, for the effective simulation of solutions $X$ to a multivariate stochastic differential equation (SDE) with a superlinearly growing $\kappa$-dissipative drift, where $\kappa>1$, driven by a m...
https://arxiv.org/abs/2504.07255
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b4f3a59efaa6828ee51f5158620e0076a7af82166fecbc809fb9d27fa03a38b7
2026-01-21T00:00:00-05:00
Linear complementary dual quasi-cyclic codes of index 2
arXiv:2504.09126v3 Announce Type: replace Abstract: We provide a polynomial approach to investigate linear complementary dual (LCD) quasi-cyclic codes over finite fields. We establish necessary and sufficient conditions for LCD quasi-cyclic codes of index 2 with respect to the Euclidean, Hermitian, and symplectic inner...
https://arxiv.org/abs/2504.09126
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e3a2841feaa0d8527ea3472722625d202a061fd7c6ede8a026b3a8b4fcfc0c1d
2026-01-21T00:00:00-05:00
Estimate for the first Dirichlet eigenvalue of $p-$Laplacian on non-compact manifolds
arXiv:2504.09856v2 Announce Type: replace Abstract: In this paper, we establish a sharp lower bound for the first Dirichlet eigenvalue of the $p$-Laplacian on bounded domains of a complete, non-compact Riemannian manifold with non-negative Ricci curvature.
https://arxiv.org/abs/2504.09856
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1a46758c0b062a82bc5cfce0fd00a8066d3ac88196af6c1a6b4e50dbe0ebfaac
2026-01-21T00:00:00-05:00
A structure-preserving numerical method for quasi-incompressible Navier-Stokes-Maxwell-Stefan systems
arXiv:2504.11892v2 Announce Type: replace Abstract: A conforming finite element scheme with mixed explicit-implicit time discretization for quasi-incompressible Navier-Stokes-Maxwell-Stefan systems in a bounded domain with periodic boundary conditions is presented. The system consists of the Navier-Stokes equations, to...
https://arxiv.org/abs/2504.11892
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935b6ecaf18baf89c3be51284667d6334b2adba7bc9eebf8a60c7bbae9cd7cb6
2026-01-21T00:00:00-05:00
A functional limit theorem for a dynamical system with an observable maximised on a Cantor set
arXiv:2504.12534v2 Announce Type: replace Abstract: We consider heavy-tailed observables maximised on a dynamically defined Cantor set and prove convergence of the associated point processes as well as functional limit theorems. The Cantor structure, and its connection to the dynamics, causes clustering of large observ...
https://arxiv.org/abs/2504.12534
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c1c4aef0130c28221c9e2ba4d1f6bc9a926d69b031deca5f6cb6faf15f6e70a1
2026-01-21T00:00:00-05:00
Linear Complementary Pairs of Quasi-Cyclic and Quasi-Twisted Codes
arXiv:2504.15231v2 Announce Type: replace Abstract: In this paper, we provide a polynomial characterization of linear complementary pairs of quasi-cyclic and quasi-twisted codes of index 2. We also give several examples of linear complementary pairs of quasi-cyclic and quasi-twisted codes with optimal security paramete...
https://arxiv.org/abs/2504.15231
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11f55ec9965a8ec3aef3ff0e2e67878c4d67e1c1d5468dac40dda93e16124d4c
2026-01-21T00:00:00-05:00
$k$-Inductive and Interpolation-Inspired Barrier Certificates for Stochastic Dynamical Systems
arXiv:2504.15412v2 Announce Type: replace Abstract: In this paper, we introduce two new types of barrier certificates that are based on multiple functions rather than a single one. A conventional barrier certificate for a stochastic dynamical system is a nonnegative real-valued function whose expected value does not in...
https://arxiv.org/abs/2504.15412
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3334c9c77ec6ccba94f77592b2851c8afb60ce6d5bdb070866548feac3f0bbf9
2026-01-21T00:00:00-05:00
$\eta$-Einstein Sasakian Lie algebras
arXiv:2504.16033v2 Announce Type: replace Abstract: We study $\eta$-Einstein Sasakian structures on Lie algebras, that is, Sasakian structures whose associated Ricci tensor satisfies an Einstein-like condition. We divide into the cases in which the Lie algebra's centre is non-trivial (and necessarily one-dimensional) a...
https://arxiv.org/abs/2504.16033
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7eebbd2d4c0a62f65d00a6d80c048a662ca4d6efe1ba7a121b3e17bbd427b3a9
2026-01-21T00:00:00-05:00
A new approach to the classification of almost contact metric manifolds via intrinsic endomorphisms
arXiv:2504.16900v2 Announce Type: replace Abstract: In 1990, D. Chinea and C. Gonzalez gave a classification of almost contact metric manifolds into $2^{12}$ classes, based on the behaviour of the covariant derivative $\nabla^g\Phi$ of the fundamental $2$-form $\Phi$. This large number makes it difficult to deal with t...
https://arxiv.org/abs/2504.16900
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be363a9765dcf236006f9f2be671f1c2c47ae691bb27369c8320ea8a03b23b3c
2026-01-21T00:00:00-05:00
A finite volume Simo-Reissner beam method for moored floating body dynamics
arXiv:2504.18248v2 Announce Type: replace Abstract: This paper presents a novel finite volume mooring line model based on the geometrically exact Simo-Reissner beam model for analysing the interaction between a floating rigid body and its mooring lines. The coupled numerical model is implemented entirely within a finit...
https://arxiv.org/abs/2504.18248
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b4499232409494100bb8dcc9461f8b22bf17f1e35d506018bc87a37cdda6d986
2026-01-21T00:00:00-05:00
Homogeneity in Coxeter groups and split crystallographic groups
arXiv:2504.18354v2 Announce Type: replace Abstract: We prove that affine Coxeter groups, even hyperbolic Coxeter groups and one-ended hyperbolic Coxeter groups are homogeneous in the sense of model theory. More generally, we prove that many (Gromov) hyperbolic groups generated by torsion elements are homogeneous. In co...
https://arxiv.org/abs/2504.18354
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daea961507df6526d297f1a1886cb0a93e98c8870757b7b469bc0bd7e31688b8
2026-01-21T00:00:00-05:00
On the Relation Between Treewidth, Tree-Independence Number, and Tree-Chromatic Number of Graphs
arXiv:2504.19751v2 Announce Type: replace Abstract: We investigate two recently introduced graph parameters, both of which measure the complexity of the tree decompositions of a given graph. Recall that the treewidth ${\rm tw}(G)$ of a graph $G$ measures the largest number of vertices required in a bag of every tree de...
https://arxiv.org/abs/2504.19751
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3eed913f9fc5b1b861961a8f41aaf9c702d06b8886fd1d865ebb8ac1911fe930
2026-01-21T00:00:00-05:00
Global Activity Scores
arXiv:2505.00711v4 Announce Type: replace Abstract: We introduce a new global sensitivity measure, the global activity scores. We establish its theoretical connection with Sobol' sensitivity indices and demonstrate its performance through numerical examples. In these examples, we compare global activity scores with Sob...
https://arxiv.org/abs/2505.00711
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f918db989ed0512eda2d474a816aa756ad851239d34f5a127fd2a22237d6afaa
2026-01-21T00:00:00-05:00
p-adic Heisenberg-Robertson-Schrodinger and p-adic Maccone-Pati Uncertainty Principles
arXiv:2505.02838v2 Announce Type: replace Abstract: Let $\mathcal{X}$ be a p-adic Hilbert space. Let $A:\mathcal{D}(A)\subseteq \mathcal{X}\to \mathcal{X}$ and $B: \mathcal{D}(B)\subseteq \mathcal{X}\to \mathcal{X}$ be possibly unbounded self-adjoint linear operators. For $x \in \mathcal{D}(A)$ with $\langle x, x \rang...
https://arxiv.org/abs/2505.02838
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16b9b8ba2105cdf99c23e4c1f89f1b07334291fbbae64f6ba3b03d7be4641e8e
2026-01-21T00:00:00-05:00
Rationality patterns
arXiv:2505.07151v2 Announce Type: replace Abstract: In this paper, we establish general categorical frameworks that extend Loewy's classification scheme for finite-dimensional real irreducible representations of groups and Borel--Tits' criterion for the existence of rational forms of representations of $\bar{F}\otimes_...
https://arxiv.org/abs/2505.07151
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bfba56d65dc2ac8c0dbf63cb811c8b8ae5f2c689a3b57cff64ec1f2c207e504a
2026-01-21T00:00:00-05:00
High-Order Hermite Optimization: Fast and Exact Gradient Computation in Open-Loop Quantum Optimal Control using a Discrete Adjoint Approach
arXiv:2505.09857v3 Announce Type: replace Abstract: This work introduces the High-Order Hermite Optimization (HOHO) method, an open-loop discrete adjoint method for quantum optimal control. Our method is the first of its kind to efficiently compute exact (discrete) gradients when using continuous, parameterized control...
https://arxiv.org/abs/2505.09857
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67d04df2a72dcac29a819c353b1e0eb06384c230185d1e4cc83297d8ab8112b3
2026-01-21T00:00:00-05:00
Long-Term Average Impulse Control with Mean Field Interactions
arXiv:2505.11345v2 Announce Type: replace Abstract: This paper analyzes and explicitly solves a class of long-term average impulse control problems with a specific mean-field interaction. The underlying process is a general one-dimensional diffusion with appropriate boundary behavior. The model is motivated by applicat...
https://arxiv.org/abs/2505.11345
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65659f1688de8ef53801ca58e77b791890ea915c6c1e12b5440e09d9a3b01891
2026-01-21T00:00:00-05:00
Existence of Friedrich-Wintgen Bound States in the Continuum: Cavity with a Thin Waveguide Opening
arXiv:2505.12297v2 Announce Type: replace Abstract: Bound states in the continuum (BICs) are localized states embedded within a continuum of propagating waves. Perturbations that disrupt BICs typically induce ultra-strong resonances, a phenomenon enabling diverse applications in photonics. This work investigates the ex...
https://arxiv.org/abs/2505.12297
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b66f17d68fb43abbbc684731025b63d5e26ac1816dcf65e11204bd4ab1e4fea7
2026-01-21T00:00:00-05:00
Semiparametric Off-Policy Inference for Optimal Policy Values under Possible Non-Uniqueness
arXiv:2505.13809v4 Announce Type: replace Abstract: Off-policy evaluation (OPE) constructs confidence intervals for the value of a target policy using data generated under a different behavior policy. Most existing inference methods focus on fixed target policies and may fail when the target policy is estimated as opti...
https://arxiv.org/abs/2505.13809
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fc3630d845bde84468c578fd6e8877e3b1d147e481f8c66b58344564a777a437
2026-01-21T00:00:00-05:00
Periodic operators over a component domain and homogenization of some class of quasi-linear elliptic problems in two-component domain with interfacial resistance
arXiv:2505.14944v3 Announce Type: replace Abstract: This paper addresses the periodic homogenization of quasilinear elliptic PDEs in a two-component domain with an interfacial thermal barrier. It introduces a periodic extension operator that ensures strong convergence of function sequences in the Sobolev space. Moreove...
https://arxiv.org/abs/2505.14944
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472ae9ee49523f34405f508273f5f52250d7d04e8c80bf4c16eaaf11b17c3dc3
2026-01-21T00:00:00-05:00
An adaptive proximal safeguarded augmented Lagrangian method for nonsmooth DC problems with convex constraints
arXiv:2505.15369v2 Announce Type: replace Abstract: A proximal safeguarded augmented Lagrangian method for minimizing the difference of convex (DC) functions over a nonempty, closed and convex set with additional linear equality as well as convex inequality constraints is presented. Thereby, all functions involved may ...
https://arxiv.org/abs/2505.15369
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77dd3e6c896b95553d4eb65adcf8bd528f781b5720e2c788b01e38c01288c3a1
2026-01-21T00:00:00-05:00
On groups with EDT0L word problem
arXiv:2505.20057v3 Announce Type: replace Abstract: We prove that the word problem for the infinite cyclic group is not EDT0L, and obtain as a corollary that a finitely generated group with EDT0L word problem must be torsion. In addition, we show that the property of having an EDT0L word problem is invariant under chan...
https://arxiv.org/abs/2505.20057
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0bda761be76360f41bb244575c420d23185d2ff9558acb470c4aafa78fed1b5b
2026-01-21T00:00:00-05:00
Locating Extremal Periodic Orbits for the Planar Circular Restricted Three Body Problem using Polynomial Sum-of-Squares Optimization
arXiv:2505.23430v2 Announce Type: replace Abstract: With an increasing interest in the design of long and complex space missions, the search for orbits that require the least amount of fuel is of fundamental interest. This paper develops existing computational models for locating Unstable Periodic Orbits (UPOs) in poly...
https://arxiv.org/abs/2505.23430
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e040eb5e54bbc9cf9d405c6ce4e3f2954e69c362af779ee5dc4d345b4c84924a
2026-01-21T00:00:00-05:00
Rydberg Atomic Receivers for Multi-Band Communications and Sensing
arXiv:2505.24168v3 Announce Type: replace Abstract: Harnessing multi-level electron transitions, Rydberg Atomic REceivers (RAREs) can detect wireless signals across a wide range of frequency bands, from Megahertz to Terahertz. This capability enables multi-band wireless communications and sensing (CommunSense). Existin...
https://arxiv.org/abs/2505.24168
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2edd465323a9cb2bdf71f404fc934fa0b7dbd2936528bc8795f76719917a2d9a
2026-01-21T00:00:00-05:00
Convergence of spectra of digraph limits
arXiv:2506.04426v2 Announce Type: replace Abstract: The relation between densities of cycles and the spectrum of a graphon, which implies that the spectra of convergent graphons converge, fundamentally relies on the self-adjointness of the linear operator associated with a graphon. In this short paper, we consider the ...
https://arxiv.org/abs/2506.04426
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7ca1ea716d8127abbc8a3dc5c42e446a2ffa296550fac39b8024130a94cb4fed
2026-01-21T00:00:00-05:00
Rejection-Sampled Linear Codes for Lossy Compression and Channel Simulation
arXiv:2506.09239v2 Announce Type: replace Abstract: We show that linear codes combined with rejection sampling can yield a capacity-achieving scheme for simulating additive exchangeable noise channels. Specifically, our scheme achieves an amount of communication within $\log e + 1$ bits from the excess functional infor...
https://arxiv.org/abs/2506.09239
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2a984b5b9934e719c97da3c9fbd6e66d215e3f52d2fd2465e9c155b738d429b5
2026-01-21T00:00:00-05:00
Sobolev regularity for the $\overline\partial$-Neumann operator and transverse vector fields
arXiv:2506.10372v2 Announce Type: replace Abstract: On a bounded smooth pseudoconvex domain in $\mathbb{C}^n$ with $n >2$, inspired by the compactness condition introduced by Yue Zhang, we present the new sufficient condition for the exact regularity of the $\overline\partial$-Neumann operator via the transverse vector...
https://arxiv.org/abs/2506.10372
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90bb5478c3a035e650c69b0a1e90efb86ee8d912862bd6eb12172863006c8881
2026-01-21T00:00:00-05:00
Two axes in non-commutative algebras with a Frobenius form
arXiv:2506.11303v5 Announce Type: replace Abstract: Throughout this paper $A$ is a commutative non-associative algebra over a field $\mathbb{F}$ of characteristic not $2.$ In addition $A$ posses a Frobenius form. We obtain detailed information about the multiplication in $A$ given two axes of type half in $A.$
https://arxiv.org/abs/2506.11303
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15c87441a7f771825008ff9ff8df04ad016165ac7793f76f57f27989f9934cea
2026-01-21T00:00:00-05:00
Serre's question on thin sets in projective space
arXiv:2506.13471v2 Announce Type: replace Abstract: We answer a question of Serre from the 1980s on rational points of bounded height on projective thin sets, in degree at least $4$. For degrees $2$ and $3$ we improve the known bounds in general. The focus is on thin sets of type II, namely corresponding to the images ...
https://arxiv.org/abs/2506.13471
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a44e3aea56b8cfed8110321265578a673fc0452ece1638d7ded3335d7e7f79ad
2026-01-21T00:00:00-05:00
Instantaneous blowup for interacting SDEs with superlinear drift
arXiv:2506.21164v2 Announce Type: replace Abstract: We consider a system of interacting SDEs on the integer lattice with multiplicative noise and a drift satisfying the finite Osgood's condition. We show instantaneous everywhere blowup for initial profiles decaying slower than $\exp \left( -\sqrt{\big|\log |x|\big|}\ri...
https://arxiv.org/abs/2506.21164
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2544d6c0b9e0df219609edc125a348077a22bb40ffc2485f5009f28f3e50e513
2026-01-21T00:00:00-05:00
On a result by Meshulam
arXiv:2506.22553v2 Announce Type: replace Abstract: In 1996, Meshulam proved that every sequence generated by applying projections onto affine subspaces, drawn from a finite collection in Euclidean space, must be bounded. In this paper, we extend his result not only from affine subspaces to convex polyhedral subsets, b...
https://arxiv.org/abs/2506.22553
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684aad527a356ac5fb68f47c85ef9a8343eff69eeecec0097c7ff9ed6c1472fb
2026-01-21T00:00:00-05:00
Degrees of non-Gorenstein canonical Fano threefolds with Picard number one
arXiv:2507.04615v3 Announce Type: replace Abstract: We show that the optimal upper bound for the anticanonical degrees of non-Gorenstein $\mathbb{Q}$-factorial canonical Fano threefolds with Picard number one is 200/3.
https://arxiv.org/abs/2507.04615
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30058bda2695aa8c660d03bcd2b65a3adcdf8d859ac5c7279ef70772c6fd25df
2026-01-21T00:00:00-05:00
Weinstein neighbourhood theorems for stratified subspaces
arXiv:2507.04897v2 Announce Type: replace Abstract: By analogy with Weinstein's neighbourhood theorem, we prove a uniqueness result for symplectic neighbourhoods of a large family of stratified subspaces. This result generalizes existing constructions, e.g., in the search for exotic Lagrangians. Along the way, we prove...
https://arxiv.org/abs/2507.04897
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9cb00f719e8568669a96d86c065c72194c8b20cea3a40e16bc6b946504a4dd29
2026-01-21T00:00:00-05:00
Elementary equivalence and diffeomorphism groups of smooth manifolds
arXiv:2507.07427v3 Announce Type: replace Abstract: Let $M$ and $N$ be smooth manifolds, with $M$ closed and connected. If the $C^r$--diffeomorphism group of $M$ is elementarily equivalent to the $C^s$--diffeomorphism group of $N$ for some $r,s\in[1,\infty)\cup\{0,\infty\}$, then $r=s$ and $M$ and $N$ are $C^r$--diffeo...
https://arxiv.org/abs/2507.07427
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15545aca57a477c43497548550c85c8ba56e2fcacf95f25152aaa1f0e31a8f38
2026-01-21T00:00:00-05:00
$f$-algebra products on AL and AM-spaces
arXiv:2507.08435v2 Announce Type: replace Abstract: We characterize all $f$-algebra products on AM-spaces by constructing a canonical AM-space $W_X$ associated to each AM-space $X$, such that the $f$-algebra products on $X$ correspond bijectively to the positive cone $(W_X)_+$. This generalizes the classical descriptio...
https://arxiv.org/abs/2507.08435
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7d26f0bbd89e61033194dde071748da11ebf1fc850ca67831003d7f1c13c2f55
2026-01-21T00:00:00-05:00
Refinement of the theory and convergence of the Sinc convolution -- beyond Stenger's conjecture
arXiv:2507.12406v3 Announce Type: replace Abstract: The Sinc convolution is an approximate formula for indefinite convolutions proposed by Stenger. The formula was derived based on the Sinc indefinite integration formula combined with the single-exponential transformation. Although its efficiency has been confirmed in ...
https://arxiv.org/abs/2507.12406
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2d899885d7dec671bc7503a075f8a007415a01a80e33da9bcb522e2dde5e5c7a
2026-01-21T00:00:00-05:00
Degenerations of families of bands and strings for gentle algebras
arXiv:2507.13945v2 Announce Type: replace Abstract: Let $A$ be a gentle algebra. For every collection of string and band diagrammes, we consider the constructible subset of the variety of representations containing all modules with this underlying diagramme. We study degenerations of such sets. We show that these sets ...
https://arxiv.org/abs/2507.13945
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3f44e8892045b7036bfd9cdc78eb2cd8dfd5681ae0487300cafa1dac1322e5f9
2026-01-21T00:00:00-05:00
The inference of Fokker-Planck equations via transport maps
arXiv:2507.15091v3 Announce Type: replace Abstract: We present a framework, which, from the trajectories detailing the spatiotemporal dynamics of a population, simultaneously reconstructs a transport map as well as the Fokker-Planck equation governing the coarse-grained probability distribution. Leveraging the Knothe-R...
https://arxiv.org/abs/2507.15091
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f588ab1ddbc72795dca7cfe84d9a3fc2d3f445e1bc2fdb3e3093f2ca8d39d655
2026-01-21T00:00:00-05:00
Structured linear factor models for tail dependence
arXiv:2507.16340v2 Announce Type: replace Abstract: A common object to describe the extremal dependence of a $d$-variate random vector $X$ is the stable tail dependence function $L$. Various parametric models have emerged, with a popular subclass consisting of those stable tail dependence functions that arise for linea...
https://arxiv.org/abs/2507.16340
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58a7cf9ead1667ba744878d771fa23d14d4591e952c87ffcbb342e7f0f6e1b59
2026-01-21T00:00:00-05:00
Analytic Theory on the Space of Blaschke Products: Simultaneous Uniformization and Pressure Metric
arXiv:2507.17077v2 Announce Type: replace Abstract: In this paper, we study complex analytic aspects of the moduli space $\Bcal_d^{fm}$ of degree $d\ge2$ fixed-point-marked Blaschke products. We define a complex structure on $\Bcal_d^{fm}$ and prove the simultaneous uniformization theorem for fixed-point-marked quasi-B...
https://arxiv.org/abs/2507.17077
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66345d5c98a58c29eb06be097988d2ec9e16ccc9b763e22baa3a9c077c08d665
2026-01-21T00:00:00-05:00
The norms for symmetric and antisymmetric tensor products of the weighted shift operators
arXiv:2507.17181v2 Announce Type: replace Abstract: In the present paper, we study the norms for symmetric and antisymmetric tensor products of weighted shift operators. By proving that for $n\geq 2$, $$\|S_{\alpha}^{l_1}\odot\cdots \odot S_{\alpha}^{l_k}\odot S_{\alpha}^{*l_{k+1}}\odot\cdots \odot S_{\alpha}^{*l_{n}}\...
https://arxiv.org/abs/2507.17181
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d23d8e6c14ecc9049d0a920909001056b7a22ae08111afe3a11582efb943c68f
2026-01-21T00:00:00-05:00
Finite generation of abelianizations of the genus 3 Johnson kernel and the commutator subgroup of the Torelli group for $\mathrm{Out}(F_3)$
arXiv:2507.20710v2 Announce Type: replace Abstract: Let $\Sigma_g^b$ be a compact oriented surface of genus $g$ with $b$ boundary components, where $b\in\{0,1\}$. The Johnson kernel $\mathcal{K}_g^b$ is the subgroup of the mapping class group $\mathrm{Mod}(\Sigma_g^b)$ generated by Dehn twists about separating simple c...
https://arxiv.org/abs/2507.20710
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f911429b34d4cc9c64325574c4a67fe8a1738958dcf7784215fb7aaeed516bcf
2026-01-21T00:00:00-05:00
On admissibility in post-hoc hypothesis testing
arXiv:2508.00770v3 Announce Type: replace Abstract: The validity of classical hypothesis testing requires the significance level $\alpha$ be fixed before any statistical analysis takes place. This is a stringent requirement. For instance, it prohibits updating $\alpha$ during (or after) an experiment due to changing co...
https://arxiv.org/abs/2508.00770
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65584b8015de05ae4b0b61a720e7b9ab56f83bf718451e31c956946d44407796
2026-01-21T00:00:00-05:00
Exceptional dual pair correspondences; case of real groups of split rank one
arXiv:2508.01551v2 Announce Type: replace Abstract: Exceptional real groups have quaternionic forms of split rank 4 that contain dual pairs $G\times G'$, where $G'$ is the split Lie group of the type $G_2$, and $G$ a Lie group of split rank one. In this paper we restrict the minimal representation of the quaternionic g...
https://arxiv.org/abs/2508.01551
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db5b4a95f3ab55cadd54930702f2bf359e0fb4932d5268594f5ee9169427089b
2026-01-21T00:00:00-05:00
Large AI Models for Wireless Physical Layer
arXiv:2508.02314v2 Announce Type: replace Abstract: Large artificial intelligence models (LAMs) are transforming wireless physical layer technologies through their robust generalization, multitask processing, and multimodal capabilities. This article reviews recent advancements in applying LAMs to physical layer commun...
https://arxiv.org/abs/2508.02314
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bf4e6cfd56d482bc575a0cd4de2ca086e10b5e1e95fe788d17e5b94f0c724f53
2026-01-21T00:00:00-05:00
Coordinate-independent model reductions of chemical reaction networks based on geometric singular perturbation theory
arXiv:2508.03304v2 Announce Type: replace Abstract: The quasi-steady-state approximation (QSSA) is a standard technique for reducing the complexity of chemical reaction networks (CRNs). The validity of any QSSA-based model is restricted to specific parameter regimes. Selecting the appropriate reduction is not always st...
https://arxiv.org/abs/2508.03304
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085b284e3d2a43b8d490d221e962d932c08b18bee09e55e374aa386d5703a786
2026-01-21T00:00:00-05:00
A dimensional mass transference principle from balls to open sets and applications to dynamical Diophantine approximation
arXiv:2508.03359v2 Announce Type: replace Abstract: The mass transference principle of Beresnevich and Velani is a powerful mechanism for determining the Hausdorff dimension/measure of $\limsup$ sets that arise naturally in Diophantine approximation. However, in the setting of dynamical Diophantine approximation, this ...
https://arxiv.org/abs/2508.03359
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62a8892c87fa9795130b1f247d56b7aae2dc6d74252f05f16db4c2658e6b990b
2026-01-21T00:00:00-05:00
Computable Bounds for Strong Approximations with Applications
arXiv:2508.03833v2 Announce Type: replace Abstract: The Koml\'os$\unicode{x2013}$Major$\unicode{x2013}$Tusn\'ady (KMT) inequality for partial sums is one of the most celebrated results in probability theory. Yet its practical application has been hindered by a lack of practical constants. This paper addresses this limi...
https://arxiv.org/abs/2508.03833
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e9c0004990f7b41f7e02421f9952a47c2ada9cdf1a37ea42ea72ff151d928eea
2026-01-21T00:00:00-05:00
Nonparametric Estimation from Correlated Copies of a Drifted Process
arXiv:2508.05259v2 Announce Type: replace Abstract: This paper presents several situations leading to the observation of multiple correlated copies of a drifted process, and then non-asymptotic risk bounds are established on nonparametric estimators of the drift function $b_0$ and its derivative. For drifted Gaussian p...
https://arxiv.org/abs/2508.05259
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4765277b8b8673a3aa173b290a927bdb6aee2f584e8868d04ae3c87295412bd5
2026-01-21T00:00:00-05:00
Entropy and polynomial entropy of derived autoequivalences of derived discrete algebras
arXiv:2508.05794v2 Announce Type: replace Abstract: The aim of this paper is to calculate entropy in the sense of Dimitrov-Haiden-Katzarkov-Kontsevich and polynomial entropy as defined by Fan-Fu-Ouchi of derived autoequivalences of derived discrete algebras over an algebraically closed field.
https://arxiv.org/abs/2508.05794
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226e0a267def160afbb3ec18dd50d72ca5b5b50747a4288da4ae08bfcb30080a
2026-01-21T00:00:00-05:00
Optimum 1-Step Majority-Logic Decoding of Binary Reed-Muller Codes
arXiv:2508.08736v3 Announce Type: replace Abstract: The classical majority-logic decoder proposed by Reed for Reed-Muller codes RM(r, m) of order r and length 2^m, unfolds in r+1 sequential steps, decoding message symbols from highest to lowest degree. Several follow-up decoding algorithms reduced the number of steps, ...
https://arxiv.org/abs/2508.08736
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877ba72b881102228e71d6f331f79dfafb2a03bb3496e9fa397240ad4a554bdf
2026-01-21T00:00:00-05:00
Tatuzawa's theorem for Rankin-Selberg $L$-functions
arXiv:2508.10844v3 Announce Type: replace Abstract: Let $\pi$ and $\pi'$ be unitary cuspidal automorphic representations of $\mathrm{GL}(n)$ and $\mathrm{GL}(n')$ over a number field $F$. We establish a new zero-free region for all $\mathrm{GL}(1)$-twists of the Rankin-Selberg $L$-function $L(s,\pi\times\pi')$, general...
https://arxiv.org/abs/2508.10844
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f1b6b0a4b6c207d192a6a3fbe3a3715be87aabe4d0ea52f701d8910a66be6c19
2026-01-21T00:00:00-05:00
High-Capacity and Low-PAPR BICM-OFDM Systems Using Non-Equiprobable and Non-Uniform Constellation Shaping With Clipping and Filtering
arXiv:2508.15639v2 Announce Type: replace Abstract: We address a design of high-capacity and low-peak-to-average power ratio (PAPR) orthogonal frequency-division multiplexing (OFDM) systems based on bit-interleaved coded modulation (BICM) utilizing non-equiprobable and non-uniform (NENU) constellations as well as clipp...
https://arxiv.org/abs/2508.15639
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2d751bf1183dcddd8c0a9622ddaa25c3fe29242bc04313e1d3c65311cd598b91
2026-01-21T00:00:00-05:00
Physics-Informed Kolmogorov-Arnold Networks for multi-material elasticity problems in electronic packaging
arXiv:2508.16999v2 Announce Type: replace Abstract: This paper proposes a Physics-Informed Kolmogorov-Arnold Network for analyzing elasticity problems in multi-material electronic packaging structures. The method replaces traditional Multi-Layer Perceptrons with Kolmogorov-Arnold Networks within an energy-based Physics...
https://arxiv.org/abs/2508.16999
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923f18dad3264eaeae808ec2754780f1708a815edbefaef4bdd0b0fbc5176cd1
2026-01-21T00:00:00-05:00
Local Well-Posedness of the Cahn-Hilliard-Biot System
arXiv:2508.17893v2 Announce Type: replace Abstract: We show short-time well-posedness of a diffuse interface model describing the flow of a fluid through a deformable porous medium consisting of two phases. The system non-linearly couples Biot's equations for poroelasticity, including phase-field dependent material pro...
https://arxiv.org/abs/2508.17893
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374528e0529f84bf90925742bf59f85dbb7476020da8cb6e4570faedd3e15e27
2026-01-21T00:00:00-05:00
Calogero-Sutherland hyperbolic system and Heckman-Opdam $\mathfrak{gl}_n$ hypergeometric function
arXiv:2508.18864v3 Announce Type: replace Abstract: We prove equivalence of two integral representations for the wave functions of hyperbolic Calogero-Sutherland system. For this we study two families of Baxter operators related to hyperbolic Calogero-Sutherland and rational Ruijsenaars models; the first one as a limit...
https://arxiv.org/abs/2508.18864
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2ab5ec1991c07e96f86e89342ec46b6cc1119653b1c72b69a4b43d068a51c8eb
2026-01-21T00:00:00-05:00
Asymptotic behavior of the Bergman kernel and associated invariants in weakly pseudoconvex domains
arXiv:2509.00301v3 Announce Type: replace Abstract: In this paper, we present an explicit description for the boundary behavior of the Bergman kernel function, the Bergman metric, and the associated curvatures along certain sequences converging to an $h$-extendible boundary point.
https://arxiv.org/abs/2509.00301
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5867cece7e9967a3872786633795fbe0d73ce0ac2746df7e7ee5e5f65e15198e
2026-01-21T00:00:00-05:00
Hochschild-Kostant-Rosenberg isomorphism for derived Deligne-Mumford stacks
arXiv:2509.00501v3 Announce Type: replace Abstract: We prove a Hochschild--Konstant--Rosenberg (HKR) theorem for arbitrary derived Deligne--Mumford (DM) stacks, extending the results of Arinkin-C\u{a}ld\u{a}raru-Hablicsek in the smooth, global quotient case, although with different methods. To formulate our result, we ...
https://arxiv.org/abs/2509.00501
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97018e32351feb6d6d1ed019fe031643df1ea2908388e169acf3200cfca76948
2026-01-21T00:00:00-05:00
Uniformly S-essential submodules and uniformly S-injective uniformly S-envelopes
arXiv:2509.01638v2 Announce Type: replace Abstract: In this paper, we introduce the notion of uniformly S-essential (u-S-essential) submodules. Let R be a commutative ring and S a multiplicative subset of R. A submodule K of an R-module M is said to be u-S-essential in M if for any submodule L of M, s1(K \cap L) = 0 fo...
https://arxiv.org/abs/2509.01638
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030b45c79763eaa988ca16aeb55e37e307989f63840493f1c4664207a02f33a0
2026-01-21T00:00:00-05:00
Uniformly S-projective relative to a module and its dual
arXiv:2509.01646v2 Announce Type: replace Abstract: In this article, we introduce the notion of u-S-projective relative to a module. Let S be a multiplicative subset of a ring R and M an R-module. An R-module P is said to be u-S-projective relative to M if for any u-S-epimorphism f : M \to N, the induced map HomR(P, f)...
https://arxiv.org/abs/2509.01646
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f4df9acb0972b4c899cf32dfbe8e4b15caf8c4decedc6819fa0d2bf0662da07a
2026-01-21T00:00:00-05:00
On base point freeness for rank one foliations
arXiv:2509.03109v2 Announce Type: replace Abstract: We prove the base point free theorem for log canonical foliated pairs of rank one on a Q-factorial projective klt threefold. Moreover, we show abundance in the case of numerically trivial log canonical foliated pairs of rank one in any dimension.
https://arxiv.org/abs/2509.03109
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5052277e606247cd17815b2de2515fe73af955414084a9fd45c9e37806a9e1ed
2026-01-21T00:00:00-05:00
Recovery of Sturm-Liouville operators from partial boundary spectral data and applications
arXiv:2509.04289v2 Announce Type: replace Abstract: We study the inverse Sturm-Liouville problem on a finite interval from partial knowledge of spectral data. Specifically, we show that the potential can be uniquely reconstructed from the knowledge of a fraction of Dirichlet eigenvalues together with the normal derivat...
https://arxiv.org/abs/2509.04289
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f3a8f29772dc61497639684ab8f3e9495b538efb26a3dc7c00d84fd701700ede
2026-01-21T00:00:00-05:00
$\mathbb R^{\omega_1}$-Factorizable Spaces and Groups
arXiv:2509.05105v2 Announce Type: replace Abstract: A topological space $X$ is $\mathbb R^{\omega_1}$-factorizable if any continuous function $f\colon X\to \mathbb R^{\omega_1}$ factors through a continuous function from $X$ to a second-countable space. It is shown that a Tychonoff space $X$ is $\mathbb R^{\omega_1}$-f...
https://arxiv.org/abs/2509.05105
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f62c01de4cc0b8b68407da053b6dd340fce9ef6e1b153473febe2e7fc979de1e
2026-01-21T00:00:00-05:00
Serrin's overdetermined theorem within Lipschitz domains
arXiv:2509.05155v3 Announce Type: replace Abstract: Let $\Omega\subset\mathbb R^n$ be a Lipschitz domain. We prove that, $\Omega$ satisfies the following Serrin-type overdetermined system $$u \in W^{1,2}(\mathbb R^n), \quad u=0\ \text{ a.e. in }\mathbb R^n\setminus \Omega,\quad \Delta u=\mathbf{c}\mathscr{H}^{n-1}|_{\p...
https://arxiv.org/abs/2509.05155
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5cbb5b54da55f06d04a053df013b96068bf872d9c5193834094b61aec0d52147
2026-01-21T00:00:00-05:00
Uniformly S-pseudo-injective modules
arXiv:2509.05843v2 Announce Type: replace Abstract: This paper introduces the notion of uniformly-S-pseudo-injective (u-S-pseudo-injective) modules as a generalization of u-S-injective modules. Let R be a ring and S a multiplicative subset of R. An R-module E is said to be u-S-pseudo-injective if for any submodule K of...
https://arxiv.org/abs/2509.05843
Academic Papers
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b8f223f47c50c13b8fcddfbf50981889a1b8b6a9a49bc5e898aa0feb018c9719
2026-01-21T00:00:00-05:00
Fujita Phenomenon for Mixed Local--Nonlocal Diffusion Equations
arXiv:2509.07405v3 Announce Type: replace Abstract: We investigate the Cauchy problem for a semilinear parabolic equation driven by a mixed local-nonlocal diffusion operator of the form \[ \partial_t u - (\Delta - (-\Delta)^{\mathsf{s}})u = \mathsf{h}(t)|x|^{-b}|u|^p + t^\varrho \mathbf{w}(x), \qquad (x,t)\in \mathbb{R...
https://arxiv.org/abs/2509.07405
Academic Papers
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3a41c7737b0fc5c944d2115dd63238be0fd601c10824406c93e19e8c8b03a6cf
2026-01-21T00:00:00-05:00
Quasi-optimal time-space discretizations for a class of nonlinear parabolic PDEs
arXiv:2509.08645v2 Announce Type: replace Abstract: We consider parabolic evolution equations with Lipschitz continuous and strongly monotone spatial operators. By introducing an additional variable, we construct an equivalent system where the operator is a Lipschitz continuous mapping from a Hilbert space $Y \times X$...
https://arxiv.org/abs/2509.08645
Academic Papers
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8f886b46191ab54dae498891dc19d8082d6f9c7bd6302cd27ff82b3b3cba5430
2026-01-21T00:00:00-05:00
2-Distance Coloring of Planar Graphs with Specific Maximum Degree
arXiv:2509.10861v2 Announce Type: replace Abstract: A k-distance r-coloring of a graph is a coloring of the vertices of the graph such that if the distance between 2 vertices x and y is less or equal to k, then x and y must have distinct colors. A planar graph is a graph that can be drawn with no edge crossing. We will...
https://arxiv.org/abs/2509.10861
Academic Papers
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abf0eaf857e22cf6f2ad6cae67f54f0f218d57c8dbf733241e2729c9cd3b0932
2026-01-21T00:00:00-05:00
Failure of Lichnerowicz-type result in parabolic geometries of real rank at least $3$
arXiv:2509.12542v4 Announce Type: replace Abstract: Given a Yamaguchi nonrigid parabolic model geometry $(G,P)$ with $G$ simple of real rank at least $3$, we use techniques developed by Erickson to establish the existence of closed, nonflat, essential, regular, normal Cartan geometries modeled on $(G,P)$. Yamaguchi non...
https://arxiv.org/abs/2509.12542
Academic Papers
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5e5a7bfd5b5fac40d6a2b3f1ab0e7ac2aa50a521d8060a2b9b3e083d9a1125df
2026-01-21T00:00:00-05:00
Learning the Influence Graph of a Markov Process that Randomly Resets to the Past
arXiv:2509.16129v2 Announce Type: replace Abstract: Learning the influence graph G of a high-dimensional Markov process is central to many application domains, including social networks, neuroscience, and financial risk analysis. However, in many of these applications, future states of the process are occasionally and ...
https://arxiv.org/abs/2509.16129
Academic Papers
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b64dcee1ba5147fd6b080ee77786a19ab8fb76b8e54441b259bc782054aabcba
2026-01-21T00:00:00-05:00
Perfect Divisibility and Coloring of Some Bull-Free Graphs
arXiv:2509.18856v3 Announce Type: replace Abstract: A graph $G$ is {\em perfectly divisible} if, for each induced subgraph $H$ of $G$, $V(H)$ can be partitioned into $A$ and $B$ such that $H[A]$ is perfect and $\omega(H[B])<\omega(H)$. A {\em bull} is a graph consisting of a triangle with two disjoint pendant edges, a ...
https://arxiv.org/abs/2509.18856
Academic Papers
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fcb73d9f33808becf1c26b78c9a65f48670f7d42c631832c1e4ee61887c17f66
2026-01-21T00:00:00-05:00
A nonlocal Aw-Rascle-Zhang system with linear pressure term
arXiv:2509.20973v2 Announce Type: replace Abstract: In this paper, we study a nonlocal extension of the Aw-Rascle-Zhang traffic model, where the pressure-like term is modeled as a convolution between vehicle density and a kernel function. This formulation captures nonlocal driver interactions and aligns structurally wi...
https://arxiv.org/abs/2509.20973
Academic Papers
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33cde6b8037f33b1ffc0b0dce4256f1c36aa155be0cb4b7cdd0b52549eaa14f3
2026-01-21T00:00:00-05:00
Motivic Classes of Isotropic Degeneracy Loci and Symmetric Orbit Closures
arXiv:2509.24348v2 Announce Type: replace Abstract: We provide explicit formulas for computing the motivic Chern and Hirzebruch classes of degeneracy loci, especially those coming from the symplectic and odd orthogonal Grassmannians. The Chern--Schwartz--MacPherson classes, K-theory classes, and Cappell--Shaneson L-cla...
https://arxiv.org/abs/2509.24348
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