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cdbe84e2046817908027d7006949e820abbb0e9a10055b92f3ac9f8a1fa3889f
2026-01-01T00:00:00-05:00
Quasi-spherical metrics and the static Minkowski inequality
arXiv:2403.06216v3 Announce Type: replace Abstract: We prove that equality within the Minkowski inequality for asymptotically flat static manifolds is achieved only by slices of Schwarzschild space.
https://arxiv.org/abs/2403.06216
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5b98800765bf034cfac885475ff01878615d82c1ce276d9edf01d7f2d0ad1d4f
2026-01-01T00:00:00-05:00
Centrality of star and monotone factorisations
arXiv:2403.08354v2 Announce Type: replace Abstract: A factorisation problem in the symmetric group is central if conjugate permutations always have the same number of factorisations. We give the first fully combinatorial proof of the centrality of transitive star factorisations that is valid in all genera, which answer...
https://arxiv.org/abs/2403.08354
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42e8ba80d53048b63d035c5d9b983e6e74d35ff6ce3c2e52eef131fbb3942a20
2026-01-01T00:00:00-05:00
On the temporal estimates for the incompressible Navier-Stokes equations and the Hall-magnetohydrodynamic equations
arXiv:2404.16290v2 Announce Type: replace Abstract: In this paper, we derive decay rates for solutions to the incompressible Navier-Stokes equations and Hall-magnetohydrodynamic equations. We first improve the decay rate of weak solutions to these equations by refining the Fourier splitting method with initial data in ...
https://arxiv.org/abs/2404.16290
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aa8341715a960255876b60c48eb028dec90fb4a00b90be8bde5b51d2899b1874
2026-01-01T00:00:00-05:00
Constrained-degree percolation on the hypercubic lattice: uniqueness and some of its consequences
arXiv:2405.09343v3 Announce Type: replace Abstract: We consider the constrained-degree percolation (CDP) model on the hypercubic lattice. This is a continuous-time percolation model defined by a sequence $(U_e)_{e\in\mathcal{E}^d}$ of i.i.d. uniform random variables and a positive integer $k$, referred to as the constr...
https://arxiv.org/abs/2405.09343
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72853cad0a0f27140ecfbfa81130c2bc28c7b365b74766f1c31a66edfe12bdf5
2026-01-01T00:00:00-05:00
On the Stieltjes Approximation Error to Logarithmic Integral
arXiv:2406.12152v2 Announce Type: replace Abstract: We study the approximation error $\varepsilon(x)=\operatorname{li}_{*}(x)-\operatorname{li}(x)$ arising from the classical Stieltjes asymptotic expansion for the logarithmic integral. Our analysis is based on the discrete values $\varepsilon_k=\varepsilon(e^{k})$ and ...
https://arxiv.org/abs/2406.12152
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da7ffb21524d41c63b0c60dda0372c5d1d78c8931a914ad3619ed1e841f434bf
2026-01-01T00:00:00-05:00
Analyzing Dynamical Systems Inspired by Montgomery's Conjecture: Insights into Zeta Function Zeros and Chaos in Number Theory
arXiv:2406.12852v2 Announce Type: replace Abstract: In this study, we analyze a novel dynamical system inspired by Montgomery's pair correlation conjecture, modeling the spacings between nontrivial zeros of the Riemann zeta function via the GUE kernel $g(u) = 1 - \left( \frac{\sin(\pi u)}{\pi u} \right)^2 + \delta(u)$....
https://arxiv.org/abs/2406.12852
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eea6ec85d44c3101b4f7396b0adba30f6d9f7140337ba4cd31298e6516976cee
2026-01-01T00:00:00-05:00
Approximate Controllability of Linear Fractional Impulsive Evolution Equations in Hilbert Spaces
arXiv:2406.15114v3 Announce Type: replace Abstract: This paper investigates the approximate controllability of linear fractional impulsive evolution equations in Hilbert spaces. The system under consideration involves the Caputo fractional derivative of order $0<\alpha\leq 1$, a closed linear operator generating a stro...
https://arxiv.org/abs/2406.15114
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6cbf9dc7cb32eeef6f119207d9fbc150c31f77e2e4685a5e0c29620c76536746
2026-01-01T00:00:00-05:00
The multiplicity of the ground state of a generalized particle system interacting with a massless Bose field
arXiv:2407.13462v3 Announce Type: replace Abstract: A generalized particle system interacting with a massless Bose field is investigated. We assume regularity conditions for the commutation relations of the interaction and annihilation operators. It is proven that if the ground state exists, its multiplicity is finite.
https://arxiv.org/abs/2407.13462
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8de0ab634c02a709c45439ebb2eca2fd164286c9f291a395e8f0ad74ca7a1641
2026-01-01T00:00:00-05:00
Pseudodifferential damping estimates and stability of relaxation shocks
arXiv:2407.14484v3 Announce Type: replace Abstract: A bottleneck in the theory of large-amplitude and multi-d viscous and relaxation shock stability is the development of nonlinear damping estimates controlling higher by lower derivatives. These have traditionally proceeded from time-evolution bounds based on Friedrich...
https://arxiv.org/abs/2407.14484
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e5e063fbe90f4309fe79c60c11239349393502ac007813e8c2c04aa57d3f3728
2026-01-01T00:00:00-05:00
Simple Models of Randomization and Preservation Theorems
arXiv:2408.15014v2 Announce Type: replace Abstract: The main purpose of this paper is to present a new and more uniform model-theoretic/combinatorial proof of the theorem ([5]): The randomization $T^{R}$ of a complete first-order theory $T$ with $NIP$ is a (complete) first-order continuous theory with $NIP$. The proof ...
https://arxiv.org/abs/2408.15014
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d39ada98c19784aad84e303da39ecf723675a8daada0bc27b926a82dfdd1d8e2
2026-01-01T00:00:00-05:00
$\mathcal{C}$-Hereditarily conjugacy separable groups and wreath products
arXiv:2409.06200v2 Announce Type: replace Abstract: We provide a necessary and sufficient condition for the restricted wreath product $A\wr B$ to be $\mathcal{C}$-hereditarily conjugacy separable where $\mathcal{C}$ is an extension-closed pseudovariety of finite groups. Moreover, we prove that the Grigorchuk group is 2...
https://arxiv.org/abs/2409.06200
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1efc371da6548ea37d30d723ac889653f953c24def7edcac6ff388ec675e92bc
2026-01-01T00:00:00-05:00
Expander estimates for cubes
arXiv:2409.16795v2 Announce Type: replace Abstract: If $\mathscr A$ is a set of natural numbers of exponential density $\delta$, then the exponential density of all numbers of the form $x^3+a$ with $x\in\mathbb N$ and $a\in\mathscr A$ is at least $\min(1, \frac 13+\frac 56 \delta)$. This is a considerable improvement o...
https://arxiv.org/abs/2409.16795
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2adb0ca1bdd6ce994d39a5e16fd8b13078deba213504e754b376273e40bf4f8f
2026-01-01T00:00:00-05:00
Functional Extreme-PLS
arXiv:2410.05517v2 Announce Type: replace Abstract: We propose an extreme dimension reduction method extending the Extreme-PLS approach to the case where the covariate lies in a possibly infinite-dimensional Hilbert space. The ideas are partly borrowed from both Partial Least-Squares and Sliced Inverse Regression techn...
https://arxiv.org/abs/2410.05517
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ba75fadbe7d6b1b5cc5d6acd1bf3177090431ca70a86c69e7228e3acb2c711df
2026-01-01T00:00:00-05:00
Fej\'er* monotonicity in optimization algorithms
arXiv:2410.08331v2 Announce Type: replace Abstract: Fej\'er monotonicity is a well-established property often observed in sequences generated by optimization algorithms. In this paper, we study an extension of this property, called Fej\'er* monotonicity, which was initially proposed in [SIAM J. Optim., 34(3), 2535-2556...
https://arxiv.org/abs/2410.08331
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89a0f5070a2bd22ddbf471d5b65746295898f505e3708e9982f2149dab23bdec
2026-01-01T00:00:00-05:00
Witten genera of complete intersections
arXiv:2410.21412v2 Announce Type: replace Abstract: We prove vanishing results for Witten genera of string generalized complete intersections in homogeneous $\text{Spin}^c$-manifolds and in other $\text{Spin}^c$-manifolds with Lie group actions. By applying these results to Fano manifolds with second Betti number equal...
https://arxiv.org/abs/2410.21412
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3021eb28abae2894af40207eb08506b86feb778ef8078a4613ecccfaae2c80bf
2026-01-01T00:00:00-05:00
On the geography of log-surfaces
arXiv:2412.14635v2 Announce Type: replace Abstract: This survey focuses on the geometric problem of log-surfaces, which are pairs consisting of a smooth projective surface and a reduced non-empty boundary divisor. In the first part, we focus on the geography problem for complex log-surfaces associated with pairs of the...
https://arxiv.org/abs/2412.14635
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bffa34ecb9cde87ab1a75b279df639abb424e056ff5db5db333a7c14c39925e4
2026-01-01T00:00:00-05:00
Maximizing Satisfied Vertex Requests in List Coloring
arXiv:2412.15927v3 Announce Type: replace Abstract: Suppose $G$ is a graph and $L$ is a list assignment for $G$. A request of $L$ is a function $r$ with nonempty domain $D\subseteq V(G)$ such that $r(v) \in L(v)$ for each $v \in D$. The triple $(G,L,r)$ is $\epsilon$-satisfiable if there exists a proper $L$-coloring $f...
https://arxiv.org/abs/2412.15927
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fec50c1ec978fc998fafa92dcf7b6d7553e00b802b0f0b2a5f6af0c3b6b6c51d
2026-01-01T00:00:00-05:00
Diophantine Graphs
arXiv:2501.00640v2 Announce Type: replace Abstract: This manuscript introduces Diophantine labeling, a new way of labeling of the vertices for finite simple undirected graphs with some divisibility condition on the edges. Maximal graphs admitting Diophantine labeling are investigated and their number of edges are compu...
https://arxiv.org/abs/2501.00640
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fad6d3d0f2040e8505907ba65752d32561bd6eed9c43ff5b64b003d74c1a9790
2026-01-01T00:00:00-05:00
Mean Field Backward Stochastic Differential Equations with Double Mean Reflections
arXiv:2501.10939v3 Announce Type: replace Abstract: In this paper, we analyze the mean field backward stochastic differential equations (MFBSDEs) with double mean reflections, whose generator and constraints both depend on the distribution of the solution. When the generator is Lipschitz continuous, based on the backwa...
https://arxiv.org/abs/2501.10939
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b95811cb0319c0091fb61c2948bdfc680e2e89a891074db3c30b3d6607126223
2026-01-01T00:00:00-05:00
Emergent transfinite topological dynamics
arXiv:2501.14963v3 Announce Type: replace Abstract: In a sequence $S=\{(X,f_n)\}_{n\in\mathbb{N}}$ of dynamical systems sharing a common ambient space, the point $f^k_n(x)$ visited by a certain $x\in X$ depends on the iteration order $k$ and on the index $n$ specifying the system in $S$. If the sequence of maps $\{f_n\...
https://arxiv.org/abs/2501.14963
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73f7416de11a3aecb0e84cb61b6e10de6b2c9a9b01ff77a760fe0ee5fc2504db
2026-01-01T00:00:00-05:00
A Gauge Set Framework for Flexible Robustness Design
arXiv:2501.14989v3 Announce Type: replace Abstract: This paper proposes a unified framework for designing robustness in optimization under uncertainty using gauge sets, convex sets that generalize distance and capture how distributions may deviate from a nominal reference. Representing robustness through a gauge set re...
https://arxiv.org/abs/2501.14989
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0bfa627e9f54520624146d3dac43fa85ce4b15717af264a654d9720bf3773ed7
2026-01-01T00:00:00-05:00
Sample complexity and weak limits of nonsmooth multimarginal Schr\"{o}dinger system with application to optimal transport barycenter
arXiv:2502.02726v2 Announce Type: replace Abstract: Multimarginal optimal transport (MOT) has emerged as a useful framework for many applied problems. However, compared to the well-studied classical two-marginal optimal transport theory, analysis of MOT is far more challenging and remains much less developed. In this p...
https://arxiv.org/abs/2502.02726
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c60a42a7411171591a18d79f857f5fd0a869327d4f5b3d4ebd668667b4f5865d
2026-01-01T00:00:00-05:00
A formalization of Borel determinacy in Lean
arXiv:2502.03432v3 Announce Type: replace Abstract: We present a formalization of Borel determinacy in the Lean 4 theorem prover. The formalization includes a definition of Gale-Stewart games and a proof of Martin's theorem stating that Borel games are determined. The proof closely follows Martin's "A purely inductive ...
https://arxiv.org/abs/2502.03432
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37cff529e6b17c74ef5a182a9557a0c5d9acb976ae71323d36c2d17e9b686b52
2026-01-01T00:00:00-05:00
Algebraic independence of the solutions of the classical Lotka-Volterra system
arXiv:2502.17194v2 Announce Type: replace Abstract: Let $(x_1,y_1),\ldots,(x_n,y_n)$ be distinct non-constant and non-degenerate solutions of the classical Lotka-Volterra system \begin{equation}\notag \begin{split} x'&= axy + bx\\ y'&= cxy + dy, \end{split} \end{equation} where $a,b,c,d\in\mathbb{C}\setminus\{0\}$. We ...
https://arxiv.org/abs/2502.17194
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67347123f71ee19556e37291c43fe5b4b6865e8529929d3564364917f03629eb
2026-01-01T00:00:00-05:00
Relationship between haptotaxis and chemotaxis in cell dynamics
arXiv:2503.00280v2 Announce Type: replace Abstract: The phenomenon where cells with elongated protrusions, such as neurons, communicate by contacting other cells and arrange themselves appropriately is termed cell sorting through haptotaxis. This phenomenon is described by partial differential equations involving nonlo...
https://arxiv.org/abs/2503.00280
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e15349d9a6360ac5ab21694f4819df0a2700d7ef1a0ebbf82632de4330818cb9
2026-01-01T00:00:00-05:00
Partition functions of determinantal point processes on polarized K\"ahler manifolds
arXiv:2503.01524v5 Announce Type: replace Abstract: In this paper, we study the full asymptotic expansion of the partition functions of determinantal point processes defined on a polarized K\"ahler manifold. We show that the coefficients of the expansion are given by geometric functionals on K\"ahler metrics satisfying...
https://arxiv.org/abs/2503.01524
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956f0175d736735d535955fcda03948cf74b1cfb4f264ea099e0cfc58e672667
2026-01-01T00:00:00-05:00
Constrained Reinforcement Learning for the Dynamic Inventory Routing Problem under Stochastic Supply and Demand
arXiv:2503.05276v2 Announce Type: replace Abstract: Green hydrogen has multiple use cases and is produced from renewable energy, such as solar or wind energy. It can be stored in large quantities, decoupling renewable energy generation from its use, and is therefore considered essential for achieving a climate-neutral ...
https://arxiv.org/abs/2503.05276
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58a32ac691e1a07bc76df768f64166f0362d5d41d47c7a3c3fceccd7447c84d8
2026-01-01T00:00:00-05:00
Reachability for multiagent control systems via Lyapunov functions
arXiv:2503.09179v2 Announce Type: replace Abstract: This paper concerns the problem of reachability of a given state for a multiagent control system in $\mathbb{R}^d$. In such a system, at every time each agent can choose his/her velocity which depends both on his/her position and on the position of the whole crowd of ...
https://arxiv.org/abs/2503.09179
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315b2183a7736e6c17b2c8e9365e21e851c883deea5cfaa0a2e352337a9b2b96
2026-01-01T00:00:00-05:00
Representation Theorems for Convex Expectations and Semigroups on Path Space
arXiv:2503.10572v2 Announce Type: replace Abstract: The objective of this paper is to investigate the connection between penalty functions from stochastic optimal control, convex semigroups from analysis and convex expectations from probability theory. Our main result provides a one-to-one relation between these object...
https://arxiv.org/abs/2503.10572
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6b4cf0b97b8540ef05e77d3f68f7d1c66581b0952114dc2f08fd99ec9bc4f6dd
2026-01-01T00:00:00-05:00
Symmetric square type $L$-series
arXiv:2504.00972v2 Announce Type: replace Abstract: We construct symmetric square type $L$-series for vector-valued modular forms transforming under the Weil representation associated to a discriminant form. We study Hecke operators and integral representations to investigate their properties, deriving functional equat...
https://arxiv.org/abs/2504.00972
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cc1d61050e94d0bf9d023895e9a73464bae50604d85b2c61e3f628f84f2777d5
2026-01-01T00:00:00-05:00
Arbitrary orientations of cycles in oriented graphs
arXiv:2504.09794v2 Announce Type: replace Abstract: We show that every sufficiently large oriented graph $G$ with minimum indegree and outdegree both at least $(3|V(G)|-1)/8$ contains every orientation of a Hamilton cycle. This result improves the approximate bound established by Kelly and resolves a long-standing prob...
https://arxiv.org/abs/2504.09794
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5c4d6bc7457b89cdc8c058ce5d7c504bd90bde109bbec90ba4df69552a27c467
2026-01-01T00:00:00-05:00
Coniveau filtrations with Z/2 coefficients
arXiv:2504.19388v2 Announce Type: replace Abstract: We show that two coniveau filtrations on the mod 2 cohomology group of a smooth projective complex variety differ.
https://arxiv.org/abs/2504.19388
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f667822523fb1a9091cb43d777a8e6dd70560b9a6dc04b98982086640e23c014
2026-01-01T00:00:00-05:00
Sobolev and quasiconformal distortion of intermediate dimension with applications to conformal dimension
arXiv:2505.10525v4 Announce Type: replace Abstract: We study the distortion of intermediate dimension under supercritical Sobolev mappings and also under quasiconformal or quasisymmetric homeomorphisms. In particular, we extend to the setting of intermediate dimensions both the Gehring--V\"ais\"al\"a theorem on dilatat...
https://arxiv.org/abs/2505.10525
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db04dd031590a5254f9395121f8d4b0f90f6e709fbe73f76d3e1ff0c13e9a841
2026-01-01T00:00:00-05:00
Consistent line clustering using geometric hypergraphs
arXiv:2505.24868v2 Announce Type: replace Abstract: Many datasets are naturally modeled as graphs, where vertices denote entities and edges encode pairwise interactions. However, some problems exhibit higher-order structure that lies beyond this framework. Among the simplest examples is line clustering, in which points...
https://arxiv.org/abs/2505.24868
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98b695b8160decac31fc21ee1ac2de7d691d8ddb8dbdf221da11979a67eb0860
2026-01-01T00:00:00-05:00
Graph quandles: Generalized Cayley graphs of racks and right quasigroups
arXiv:2506.04437v3 Announce Type: replace Abstract: We solve two open problems of Valeriy Bardakov about Cayley graphs of racks and graph-theoretic realizations of right quasigroups. We also extend Didier Caucal's classification of labeled Cayley digraphs to right quasigroups and related algebraic structures like quand...
https://arxiv.org/abs/2506.04437
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6c54e504f234b176b14e33d8ca41d7b1c76bee160e876ea7c6558c5cb36715b7
2026-01-01T00:00:00-05:00
On solutions to Hardy-Sobolev equations on Riemannian manifolds
arXiv:2506.20089v2 Announce Type: replace Abstract: Let $(M,g)$ be a closed Riemannian manifold of dimension at least $3$. Let $S$ be the union of the focal submanifolds of an isoparametric function on $(M,g)$. In this article we address the existence of solutions of the Hardy-Sobolev type equation $\Delta_g u+K(x)u=\f...
https://arxiv.org/abs/2506.20089
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541a4f781b398143ce1543689f3942eaba098ea3fe0494802af2316da4a44d36
2026-01-01T00:00:00-05:00
On pre-local tabularity above $\mathrm{S4}\times \mathrm{S4}$
arXiv:2506.20874v2 Announce Type: replace Abstract: We investigate pre-local tabularity in normal extensions of the logic $\mathrm{S4}\times \mathrm{S4}$. We show that there are exactly four pre-locally tabular logics in normal extensions of products of finite height, and that every non-locally tabular logic in this fa...
https://arxiv.org/abs/2506.20874
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5494be9847e527a8cc90736eaeaf9d777d9330341164213b6190076cb597fd64
2026-01-01T00:00:00-05:00
On the zero sets of harmonic polynomials
arXiv:2506.24116v4 Announce Type: replace Abstract: In this paper we consider nonzero harmonic functions vanishing on some subsets of $\mathbb R^n$. We give a positive solution to Problem 151 from the Scottish Book posed by R. Wavre in 1936. In more detail, we construct a nonzero harmonic polynomial that vanishes on th...
https://arxiv.org/abs/2506.24116
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61bcac495db8f9dc13e124580f08ffe0e008ec391fe598f47e4eb46e5af01327
2026-01-01T00:00:00-05:00
Complete classification of the Dehn functions of Bestvina-Brady groups
arXiv:2507.07566v2 Announce Type: replace Abstract: We prove that the Dehn function of every finitely presented Bestvina-Brady group grows as a linear, quadratic, cubic, or quartic polynomial. In fact, we provide explicit criteria on the defining graph to determine the degree of this polynomial. As a consequence, we id...
https://arxiv.org/abs/2507.07566
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5130ef8cd0fa7d171784a39c730aaac8d9edb2394ecbba01a7e1ad3c9728f97a
2026-01-01T00:00:00-05:00
Generalized Symmetries From Fusion Actions
arXiv:2508.13063v3 Announce Type: replace Abstract: Let $A$ be a condensable algebra in a modular tensor category $\mathcal{C}$. We define an action of the fusion category $\mathcal{C}_A$ of $A$-modules in $\mathcal{C}$ on the morphism space $\mbox{Hom}_{\mathcal{C}}(x,A)$ for any $x$ in $\mathcal{C}$, whose characters...
https://arxiv.org/abs/2508.13063
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3bbf5639c26b0153fe4af057500a3353c97c2ac93640f3e69f44f4b64be983e9
2026-01-01T00:00:00-05:00
Non-vanishing of Poincar\'e Series on Average
arXiv:2508.17242v2 Announce Type: replace Abstract: We study when Poincar\'e series for congruence subgroups do not vanish identically. We show that almost all Poincar\'e series with suitable parameters do not vanish when either the weight $k$ or the index $m$ varies in a dyadic interval. Crucially, analyzing the probl...
https://arxiv.org/abs/2508.17242
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30c7de723d8839a40450d89b7342e216895e9178cb87be901fa42c685233aa98
2026-01-01T00:00:00-05:00
Sharp bilinear eigenfunction estimate, $L^\infty_{x_2}L^p_{t,x_1}$-type Strichartz estimate, and energy-critical NLS
arXiv:2509.09565v3 Announce Type: replace Abstract: We establish sharp bilinear eigenfunction estimates for the Laplace-Beltrami operator on the standard three-sphere $\mathbb{S}^3$, eliminating the logarithmic loss that has persisted in the literature since the pioneering work of Burq, G\'erard, and Tzvetkov over twen...
https://arxiv.org/abs/2509.09565
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62c25ee4ded71e3befcafa5a5f60f7234a21b07151a76301895fb6bcfb0a68bf
2026-01-01T00:00:00-05:00
Generic Frameworks for Distributed Functional Optimization and Learning over Time-Varying Networks
arXiv:2509.17554v2 Announce Type: replace Abstract: In this paper, we establish a distributed functional optimization (DFO) theory over time-varying networks. The vast majority of existing distributed optimization theories are developed based on Euclidean decision variables. However, for many scenarios in machine learn...
https://arxiv.org/abs/2509.17554
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604f5219b061ed17ba494f10e4899cdf84a22c756e690dbebf8b29293af88d92
2026-01-01T00:00:00-05:00
A geometric perspective on the inextensible flows and energy of curves in 4-dimensional pseudo-Galilean space
arXiv:2509.24036v2 Announce Type: replace Abstract: In this study, inextensible flows of curves in four-dimensional pseudo-Galilean space are expressed, and the necessary and sufficient conditions of these curve flows are given as partial differential equations. Also, the directional derivatives are defined in accordan...
https://arxiv.org/abs/2509.24036
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927be103e241e4392d6aab9208a5df75f153c1d0527b4d3639df5dd1616ac0d5
2026-01-01T00:00:00-05:00
Homogeneity
arXiv:2509.25227v2 Announce Type: replace Abstract: The four types of homogeneity -- additive, multiplicative, exponential, and logarithmic -- are generalized as transformations describing how a function $f$ changes under scaling or shifting of its arguments. These generalized homogeneity functions capture different sc...
https://arxiv.org/abs/2509.25227
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cb1f0a77338542574d739cc7e98ab1d46424dbeb9123905cbb0fee0478168043
2026-01-01T00:00:00-05:00
Non-Attainment of Minima in Non-Polyhedral Conic Optimization: A Robust SOCP Example
arXiv:2510.00318v2 Announce Type: replace Abstract: A fundamental theorem of linear programming states that a feasible linear program is solvable if and only if its objective function is copositive with respect to the recession cone of its feasible set. This paper demonstrates that this crucial guarantee does not exten...
https://arxiv.org/abs/2510.00318
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413ff94b2c4c269c6a0ea5477a6f31ec07ade104b8dd7c7c2c9d5af37dd09444
2026-01-01T00:00:00-05:00
Hausdorff dimension and quasisymmetric minimality of homogeneous Moran sets
arXiv:2510.00540v2 Announce Type: replace Abstract: In this paper, we study the quasisymmetric Hausdorff minimality of homogeneous Moran sets. First, we obtain the Hausdorff dimension formula of two classes of homogeneous Moran sets which satisfy some conditions. Second, we show two special classes of homogeneous Moran...
https://arxiv.org/abs/2510.00540
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76be4f73385b9de9385d85e0863a976dcbad0a3e898497911aa738a2be583557
2026-01-01T00:00:00-05:00
Robustified Gaussian quasi-likelihood inference for volatility
arXiv:2510.02666v3 Announce Type: replace Abstract: We consider statistical inference for a class of continuous semimartingale regression models based on high-frequency observations subject to contamination by finite-activity jumps and spike noise. By employing density-power weighting and H\"{o}lder-inequality-based no...
https://arxiv.org/abs/2510.02666
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398e35d1ae87d793791f091e946f22fc265aff0197fc1ef7257e12648df36c79
2026-01-01T00:00:00-05:00
Concentration of the hypergraph's weak independence number
arXiv:2510.15117v2 Announce Type: replace Abstract: In this note we generalize the results of the recent work by Tom Bohman and Jacob Hofstad on the independence number in G(n, p) to the case of the random k-uniform hypergraph. Concentration in two values occurs in the regime $p>n^{-(k-1)k/(k+1)+\varepsilon}$.
https://arxiv.org/abs/2510.15117
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e297ea78b3ee30a1d2b0507cf943891d768b0aa36b9d2097bbc0ceff7537a7ec
2026-01-01T00:00:00-05:00
Nonradial Quenching Profile for a MEMS Model
arXiv:2510.15246v2 Announce Type: replace Abstract: We construct a quenching solution to the parabolic MEMS model \[ u_t = \Delta u - \frac{1}{u^2} \quad \text{in } \mathcal{B} \times (0,T), \quad u|_{\partial \mathcal{B}} = 1, \] where $\mathcal{B}$ is the unit disc in $\mathbb{R}^2$, and $T > 0$ denotes the quenching...
https://arxiv.org/abs/2510.15246
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303927e031a5ecdcc0f7075e3153df202b70183944eb78d8703a323ac32f7d70
2026-01-01T00:00:00-05:00
On Type I blowup and $\varepsilon$-regularity criteria of suitable weak solutions to the 3D incompressible MHD equations
arXiv:2510.25448v2 Announce Type: replace Abstract: We study interior $\varepsilon$-regularity and Type I blowup criteria for suitable weak solutions to the three-dimensional incompressible MHD equations. Our starting point is a direct iteration scheme for the classical Caffarelli--Kohn--Nirenberg scaled energy quantit...
https://arxiv.org/abs/2510.25448
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a07c761bd3e1bf3755103c329bbb5295f2f87719c372680942ced2ec1c662d9e
2026-01-01T00:00:00-05:00
Exponential Stability of a Degenerate Euler-Bernoulli Beam with Axial Force and Delayed Boundary Control
arXiv:2510.25484v2 Announce Type: replace Abstract: This work investigates the global exponential stabilization of a degenerate Euler-Bernoulli beam subjected to a non uniform axial force and a delayed feedback control. First, we establish the well-posedness of the system by constructing an appropriate energy space in ...
https://arxiv.org/abs/2510.25484
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975ba2bfcd3f9e9d0f79dcdef9b7d28873cde580d8118e1335045b492c4240aa
2026-01-01T00:00:00-05:00
Quenched coalescent for diploid population models with selfing and overlapping generations
arXiv:2510.26115v2 Announce Type: replace Abstract: We introduce a general diploid population model with self-fertilization and possible overlapping generations, and study the genealogy of a sample of $n$ genes as the population size $N$ tends to infinity. Unlike traditional approach in coalescent theory which consider...
https://arxiv.org/abs/2510.26115
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a6d4303030fd68ee219dd21d77ddb63682465c27c099f6ef994247b55c635c8e
2026-01-01T00:00:00-05:00
Polynomial Approximation in Higher-Order Weighted Dirichlet Spaces
arXiv:2510.26133v2 Announce Type: replace Abstract: Fej\'er's theorem guarantees norm convergence of Ces\`aro means of Taylor partial sums in the Hardy space, whereas such convergence generally fails in weighted Dirichlet-type spaces, especially in the higher-order setting. In this paper, we investigate summability pro...
https://arxiv.org/abs/2510.26133
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26394e623078f72a2c58b757a6576166be7f986a0ebd6333a13a81238e7d3bd4
2026-01-01T00:00:00-05:00
A Group with Exactly One Noncommutator
arXiv:2511.00541v2 Announce Type: replace Abstract: The question of whether there exists a finite group of order at least three in which every element except one is a commutator has remained unresolved in group theory. In this article, we address this open problem by developing an algorithmic approach that leverages se...
https://arxiv.org/abs/2511.00541
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18f1eb1b67ba1ab4e5517576b8dbef10fa7c8cd254463508798f366382897a9a
2026-01-01T00:00:00-05:00
New Algebraic Points on Curves
arXiv:2511.15635v2 Announce Type: replace Abstract: Let $C$ be a smooth projective absolutely irreducible curve of genus at least 2, defined over the rationals. For a number field $L$, we define the set of $L$-new points on $C$ to be $C(L)_{new} = \{P \in C(L) : \mathbb{Q}(P)=L\}$; this is the set of points on $C$ defi...
https://arxiv.org/abs/2511.15635
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7c2ae2be3cf0e8f441703bf1096244b2c7e693167f95bf9e2fc9b981d2cc3ec4
2026-01-01T00:00:00-05:00
Classical localization problem: a survey
arXiv:2511.18216v2 Announce Type: replace Abstract: We survey classical localization problems arising from quantum network models in symmetry class C and their mappings to history-dependent random walks on directed lattices. We describe how localization versus delocalization of trajectories can be analysed using percol...
https://arxiv.org/abs/2511.18216
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422f77bcebb482b81e4a6d32a8f53184b944e72ab469284ae9a2974474b5e996
2026-01-01T00:00:00-05:00
Local Laws and Fluctuations for Super-Coulombic Riesz Gases
arXiv:2511.18623v2 Announce Type: replace Abstract: We study the local statistical behavior of the super-Coulombic Riesz gas of particles in Euclidean space of arbitrary dimension, with inverse power distance repulsion integrable near $0$, and with a general confinement potential, in a certain regime of inverse tempera...
https://arxiv.org/abs/2511.18623
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94f5c5340e422ee30478343b591081a9d8e7c96f608c0845b65d3d4f99f51655
2026-01-01T00:00:00-05:00
Generalized Latin Square Graphs of Semigroups: A Counting Framework for Regularity and Spectra
arXiv:2511.23190v2 Announce Type: replace Abstract: We introduce the \emph{Generalized Latin Square Graph} $\Gamma(S)$ of a finite semigroup $S$. Since we record global factorization multiplicities and local alternative counts, we define three counting invariants $N_S,N_R,N_C$. This gives that we have a simple degree f...
https://arxiv.org/abs/2511.23190
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3dbf7c7b9037073ffb3513b609ddcf90bbaa15ad43462ea3f41469060eda10b9
2026-01-01T00:00:00-05:00
Avoidance of non-strict saddle points by blow-up
arXiv:2511.23268v2 Announce Type: replace Abstract: It is an old idea to use gradient flows or time-discretized variants thereof as methods for solving minimization problems. In some applications, for example in machine learning contexts, it is important to know that for generic initial data, gradient flow trajectories...
https://arxiv.org/abs/2511.23268
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40854c9ffbf85f39656ad165d31e87a1fd5d1fd3cd870deba67a76d6e3c03314
2026-01-01T00:00:00-05:00
Hamiltonicity of optimal 2-planar graphs
arXiv:2512.11535v2 Announce Type: replace Abstract: A classical result of Tutte shows that every 4-connected planar graph is Hamiltonian. In recent years, there has been growing interest in extending classical Hamiltonian results from planar graphs to sparse graphs with drawings allowing crossings, such as $k$-planar g...
https://arxiv.org/abs/2512.11535
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c6eda61d5f1fc8546340d1cc4969dd82950c1a4f5500c435a5ed4b13b364eafe
2026-01-01T00:00:00-05:00
Teleportation=Translation: Continuous recovery of black hole information
arXiv:2512.11877v3 Announce Type: replace Abstract: The \textit{Teleportation=Translation} conjecture posits that the recovery of information from a black hole is dual to a geometric translation in the emergent spacetime. In this paper, we establish this equivalence by constructing a continuous family of unitaries that...
https://arxiv.org/abs/2512.11877
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1bc69f6969faa7847709739042d672b4fe5bbf7c0d35c477adf3b7707022914a
2026-01-01T00:00:00-05:00
Complements of discriminants of real parabolic function singularities. II
arXiv:2512.12738v2 Announce Type: replace Abstract: We provide a complete list of the connected components of the spaces of non-discriminant functions within standard versal deformations of function singularities of classes $X_9$, $J_{10}$ and $P_8^1$ (as well as a partial list for the remaining class, $P_8^2$). Thus, ...
https://arxiv.org/abs/2512.12738
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6c66087eb01d5367826ff239aac5b668d88e314d32fc1b576a4631257c381819
2026-01-01T00:00:00-05:00
Hyperbolic equations with fifth-order symmetries
arXiv:2512.12789v2 Announce Type: replace Abstract: This paper examines the classification of hyperbolic equations. We study a class of equations of the form $$\frac{\partial^2 u}{\partial x\partial y}=F\left(\frac{\partial u}{\partial x},\frac{\partial u}{\partial y},u\right),$$ where $u(x,y)$ is the unknown function ...
https://arxiv.org/abs/2512.12789
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4c0eb734d6c81ab86a46ea132f6a965ff7afe7bce090502f8b521c00ed24a817
2026-01-01T00:00:00-05:00
Well-Posedness of Pseudo-Parabolic Gradient Systems with State-Dependent Dynamics
arXiv:2512.15164v2 Announce Type: replace Abstract: This paper develops a general mathematical framework for pseudo-parabolic gradient systems with state-dependent dynamics. The state dependence is induced by variable coefficient fields in the governing energy functional. Such coefficients arise naturally in scientific...
https://arxiv.org/abs/2512.15164
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6118263bd7853dfafdbbc304a6577bb02aeb43b7d207cec0dc2ce94415c7cbca
2026-01-01T00:00:00-05:00
Capillary $L_p$-Christoffel-Minkowski problem
arXiv:2512.15464v2 Announce Type: replace Abstract: We solve the capillary $L_p$-Christoffel--Minkowski problem in the half-space for $1<k+1$ in the class of even hypersurfaces. A crucial ingredient is a non-collapsing estimate that yields lower bounds for both the height and the capillary support function. Our result ...
https://arxiv.org/abs/2512.15464
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57f68207b4bab4979c6d3b4736f48cea916ca320cac41f9186d1d197a7d620fa
2026-01-01T00:00:00-05:00
A semicircle law for the normalized Laplacian of sparse random graphs
arXiv:2512.20146v2 Announce Type: replace Abstract: We study the limiting spectral distribution of the normalized Laplacian $\mathcal L$ of an Erd\H{o}s-R\'enyi graph $G(n,p)$. To account for the presence of isolated vertices in the sparse regime, we define $\mathcal L$ using the Moore-Penrose pseudoinverse of the degr...
https://arxiv.org/abs/2512.20146
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e7a91764889ff90804b4bc9d146457b23f355624327acbba1822ed3f7f1dfbc6
2026-01-01T00:00:00-05:00
On the Euclidean Distance Degree of Quadratic Two-Neuron Neural Networks
arXiv:2512.21016v3 Announce Type: replace Abstract: We study the Euclidean Distance degree of algebraic neural network models from the perspective of algebraic geometry. Focusing on shallow networks with two neurons, quadratic activation, and scalar output, we identify the associated neurovariety with the second secant...
https://arxiv.org/abs/2512.21016
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14145c5834405a2ea4822afecff45abd18b45a537cecbedadaa8f280ed9938bf
2026-01-01T00:00:00-05:00
A Sieve M-Estimator for Entropic Optimal Transport
arXiv:2512.21981v2 Announce Type: replace Abstract: The entropically regularized optimal transport problem between probability measures on compact Euclidean subsets can be represented as an information projection with moment inequality constraints. This allows its Fenchel dual to be approximated by a sequence of convex...
https://arxiv.org/abs/2512.21981
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29c3db8088aa39be8e4e60f641b339a781d222f13969ee6223f206b0f874caad
2026-01-01T00:00:00-05:00
Tiling Triangles with $2\pi/3$ Angles
arXiv:2512.22696v2 Announce Type: replace Abstract: Motivated by a question of Erd\"{o}s and inquiries by Beeson and Laczkovich, we explore the possible $N$ for which a triangle $T$ can tile into $N$ congruent copies of a triangle $R$. The \emph{reptile} cases (where $T$ is similar to $R$) and the \emph{commensurable-a...
https://arxiv.org/abs/2512.22696
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b29d1db98a40a966e7b07eb03bd7f259d03f1d24fff7415c424dd779b883a7b2
2026-01-01T00:00:00-05:00
L\^e modules and hypersurfaces with one-dimensional singular sets
arXiv:2512.23058v2 Announce Type: replace Abstract: By using our previous results on L\^e modules and an upper-bound on the betti numbers which we proved with L\^e, we investigate the cohomology of Milnor fibers and the internal local systems given by the vanishing cycles of hypersurfaces with one-dimensional singular ...
https://arxiv.org/abs/2512.23058
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8e0885a068fcf4157d44b970c85faf25f826a9504d79107ed464271c2906fb76
2026-01-01T00:00:00-05:00
Bounding the integral of the argument of the Riemann Zeta function
arXiv:2512.23064v2 Announce Type: replace Abstract: This article improves the estimate of $|S_1(t_2)-S_1(t_1)|$, which is the definite integral of the argument of the Riemann zeta-function between $t_1$ and $t_2$. Estimates of this quantity are needed to apply Turing's method to compute the exact number of zeta zeros u...
https://arxiv.org/abs/2512.23064
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d40e465c2a29bc67092114942beafac86bb4e11c63c743812691986b9fe07f56
2026-01-01T00:00:00-05:00
Intersections of sumsets in additive number theory
arXiv:2512.23574v2 Announce Type: replace Abstract: Let $A$ be a subset of an additive abelian semigroup and let $hA$ be the $h$-fold sumset of $A$. The following question is considered: Let $(A_q)_{q=1}^{\infty}$ be a strictly decreasing sequence of sets in the semigroup and let $A = \bigcap_{q=1}^{\infty} A_q$. When ...
https://arxiv.org/abs/2512.23574
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2d84a8c31016c4262039d09b08d6827d3940595db9bd3d238cdb53b70575897d
2026-01-01T00:00:00-05:00
The Time-Periodic Cahn-Hilliard-Gurtin System on the Half Space as a Mixed-Order System with General Boundary Conditions
arXiv:2512.23582v2 Announce Type: replace Abstract: A well-posedness and maximal regularity result for the time-periodic Cahn-Hilliard-Gurtin system in the half space is proved. For this purpose, we introduce a novel class of complementing boundary conditions, extending the classical Lopatinski\u{\i}-Shapiro conditions...
https://arxiv.org/abs/2512.23582
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d73597cfddf4bc0ae839ecab513922788df268dcbf38deadf037d222d67ccbf2
2026-01-01T00:00:00-05:00
Forward-backward stochastic simulations: Q-based model for measurement and Bell-nonlocality consistent with weak local realistic premises
arXiv:2205.06070v5 Announce Type: replace-cross Abstract: We show how measurement and nonlocality can be explained consistently with macroscopic realism and no-signaling, and causal relations for macroscopic quantities. Considering measurement of a field amplitude $\hat{x}$, we derive theorems that lead to an equivalen...
https://arxiv.org/abs/2205.06070
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37c14013e745b273049e727e52a143f82eb1b7c14eeb87cd5f6c42417dc202c6
2026-01-01T00:00:00-05:00
Decomposition of $\mathcal{N}=1$ superconformal minimal models and their fractional quantum Hall wavefunctions
arXiv:2303.10107v2 Announce Type: replace-cross Abstract: $\mathcal{N}=1$ superconformal minimal models are the first series of unitary conformal field theories (CFTs) extending beyond Virasoro algebra. Using coset constructions, we characterize CFTs in $\mathcal{N}=1$ superconformal minimal models using combinations o...
https://arxiv.org/abs/2303.10107
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64281923cbce4c2a3c2e0132e9374c8ff1d702594503c334a01ca32b8d863d13
2026-01-01T00:00:00-05:00
Studentising Kendall's Tau: U-Statistic Estimators and Bias Correction for a Generalised Rank Variance-Covariance framework
arXiv:2307.10973v2 Announce Type: replace-cross Abstract: Kemeny (1959) introduced a topologically complete metric space to study ordinal random variables, particularly in the context of Condorcet's paradox and the measurability of ties. Building on this, Emond & Mason (2002) reformulated Kemeny's framework into a rank...
https://arxiv.org/abs/2307.10973
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ac88cdc88a74def0bfefbb9e9d730eb52bb1045ad08a9de9c8a620cc700a5e6b
2026-01-01T00:00:00-05:00
The Population Resemblance Statistic: A Chi-Square Measure of Fit for Banking
arXiv:2307.11878v4 Announce Type: replace-cross Abstract: The Population Stability Index (PSI) is a widely used measure in credit risk modeling and monitoring within the banking industry. Its purpose is to monitor for changes in the population underlying a model, such as a scorecard, to ensure that the current populati...
https://arxiv.org/abs/2307.11878
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fbbd01385ae49323355e16d00cdc8c909648d41c7dd9a8963be59cb7b2439c83
2026-01-01T00:00:00-05:00
Quantum Expander Mixing Lemma and its Structural Converse
arXiv:2403.11454v2 Announce Type: replace-cross Abstract: Expander graphs are fundamental in both computer science and mathematics, with a wide array of applications. With quantum technology reshaping our world, quantum expanders have emerged, finding numerous uses in quantum information theory, quantum complexity, and...
https://arxiv.org/abs/2403.11454
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22cae4e650eb880be1447459b8efbed4bf826944f3adb3a4be83782403437cbc
2026-01-01T00:00:00-05:00
Binary Galton-Watson trees with mutations
arXiv:2501.10951v2 Announce Type: replace-cross Abstract: We consider a multitype Galton-Watson process that allows for the mutation and reversion of individual types in discrete and continuous time. In this setting, we explicitly compute the time evolution of quantities such as the mean and distributions of different ...
https://arxiv.org/abs/2501.10951
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14f2683f4b1a2d9040c6883574b932cbe698507cf568a482b1a39b99c2b3087b
2026-01-01T00:00:00-05:00
Classical Estimation of the Free Energy and Quantum Gibbs Sampling from the Markov Entropy Decomposition
arXiv:2504.17405v2 Announce Type: replace-cross Abstract: We revisit the Markov Entropy Decomposition, a classical convex relaxation algorithm introduced by Poulin and Hastings to approximate the free energy in quantum spin lattices. We identify a sufficient condition for its convergence, namely the decay of the effect...
https://arxiv.org/abs/2504.17405
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2d1e661840b0c7cd94b87079c887bd3027b80d1969f7e8336961727c7bd16359
2026-01-01T00:00:00-05:00
Gravitational radiation at infinity with negative cosmological constant and AdS$_4$ holography
arXiv:2507.05826v4 Announce Type: replace-cross Abstract: The covariant characterization of the existence of gravitational radiation traversing infinity $\mathscr{J}$ in the presence of a negative cosmological constant is presented. It is coherent and consistent with the previous characterizations put forward for the c...
https://arxiv.org/abs/2507.05826
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1f7c3d5113fa83beea445f94177ac0e68da8122c1ecc23e0bd44ece5b061d898
2026-01-01T00:00:00-05:00
Optically Controlled Skyrmion Number Current
arXiv:2508.11209v2 Announce Type: replace-cross Abstract: We propose a mechanism to control the motion of magnetic Skyrmions through the generation of a Skyrmion number current. This current is induced and tuned by an explicitly time-dependent Hamiltonian that includes a Zeeman term arising from the interaction between...
https://arxiv.org/abs/2508.11209
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6f13d9fe3c21f3eb71e3ebe1ea26fd5b1e95a21cad5542617bd78677a584c5ce
2026-01-01T00:00:00-05:00
Quiver superconformal index and giant gravitons: asymptotics and expansions
arXiv:2509.12123v3 Announce Type: replace-cross Abstract: We study asymptotics of the $d=4$, $\mathcal{N}=1$ superconformal index for toric quiver gauge theories. Using graph-theoretic and algebraic factorization techniques, we obtain a cycle expansion for the large-$N$ index in terms of the $R$-charge-weighted adjacen...
https://arxiv.org/abs/2509.12123
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d41605f7b3467e50102b06dfb1333fb955bdfaf7208b0ba2667c04f4ec483b66
2026-01-01T00:00:00-05:00
Quantum Signatures of Strange Attractors
arXiv:2510.01416v3 Announce Type: replace-cross Abstract: In classical mechanics, driven systems with dissipation often exhibit complex, fractal dynamics known as strange attractors. This paper addresses the fundamental question of how such structures manifest in the quantum realm. We investigate the quantum Duffing os...
https://arxiv.org/abs/2510.01416
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aa04d5e453bd7b98118405c81d044f5c25a67930cf039650328b332f4eeb037a
2026-01-01T00:00:00-05:00
The Popkov-Sch\"{u}tz two-lane lattice gas: Universality for general jump rates
arXiv:2510.12678v2 Announce Type: replace-cross Abstract: We consider the asymmetric version of the Popkov-Sch\"{u}tz two-lane lattice gas with general jump rates, subject to the stationary measure being of product form. This still leaves five free parameters. At density 1/2 the eigenvalues of the flux Jacobian are deg...
https://arxiv.org/abs/2510.12678
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cf0d0a891889aacda129059ca68c7872a0749a4fa15f900b6df8ee8913d88aaf
2026-01-01T00:00:00-05:00
Results on Lorentzian metric spaces
arXiv:2510.24423v2 Announce Type: replace-cross Abstract: We provide a short introduction to ``Lorentzian metric spaces" i.e., spacetimes defined solely in terms of the two-point Lorentzian distance. As noted in previous work, this structure is essentially unique if minimal conditions are imposed, such as the continuit...
https://arxiv.org/abs/2510.24423
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a51b4a6daec37ae1e8a1b1ec5ae730bc657099bac6a2da8c7826d6e2031a621b
2026-01-01T00:00:00-05:00
Torus Knots in Adjoint Representation
arXiv:2512.23095v2 Announce Type: replace-cross Abstract: We derive a closed-form expression for the adjoint polynomials of torus knots and investigate their special properties. The results are presented in the very explicit double sum form and provide a deeper insight into the structure of adjoint invariants essential...
https://arxiv.org/abs/2512.23095
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faf3809ad0b1488d2374806680af801ce1f2835fec379f62af4c164ebfc93f71
2026-01-01T00:00:00-05:00
Lambda Expected Shortfall
arXiv:2512.23139v2 Announce Type: replace-cross Abstract: The Lambda Value-at-Risk (Lambda$-VaR) is a generalization of the Value-at-Risk (VaR), which has been actively studied in quantitative finance. Over the past two decades, the Expected Shortfall (ES) has become one of the most important risk measures alongside Va...
https://arxiv.org/abs/2512.23139
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a61a28192c9b97294c89ccabbcc49be82cbeca7fff8c4f7973ad1a00b6536b3b
2026-01-01T00:00:00-05:00
Machine-Learning Classification of Neutron-Star Matter Composition from Macroscopic and Oscillation Observables
arXiv:2512.23758v1 Announce Type: new Abstract: The microscopic composition of neutron star interiors remains uncertain, with possible scenarios including nucleonic matter, hyperonic matter, dark matter admixed cores, and strange self-bound matter. Traditional constraints on the equation of state rely on Tolman Oppenhe...
https://arxiv.org/abs/2512.23758
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1752613fd97fd3b231a1df16f7e5e69870c6ddfff84ac38e90b79051ce52af04
2026-01-01T00:00:00-05:00
Clustering of cosmic string loops within a Milky-way like halo
arXiv:2512.23811v1 Announce Type: new Abstract: Loops of cosmic string experience a recoil from anisotropic gravitational radiation, known as the rocket effect, which influences the extent to which they are captured by galaxies during structure formation. Analytical studies have reached different conclusions regarding ...
https://arxiv.org/abs/2512.23811
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3cc240742b5c5c02abd65c0150f48b7016f8d7093d425db4a622f8bc0e952793
2026-01-01T00:00:00-05:00
COBIPLANE: A Systematic Search for Compact Binary Millisecond Pulsars at Low Galactic Latitudes
arXiv:2512.23815v1 Announce Type: new Abstract: We present the main results obtained from the COmpact BInary Pulsar search in the low-LAtitude NEighborhood (COBIPLANE), an optical photometric survey designed to find new `spider' binary millisecond pulsars. We conducted observations targeting 30 unidentified sources fro...
https://arxiv.org/abs/2512.23815
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060fb669df6752df64b45817d6d0830bfbb8b2a25b4f48c141eee9f7ec109cf4
2026-01-01T00:00:00-05:00
A secondary orbiter under collisions with an accretion disk
arXiv:2512.23826v1 Announce Type: new Abstract: Dynamics of stellar orbits in dense stellar systems and nuclear star clusters (NSC) with an embedded supermassive black hole (SMBH) is governed a complex interplay of different forces. In particular, star--star gravitational collisions (relaxation), physical collisions be...
https://arxiv.org/abs/2512.23826
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febbe8a2af7b0926710c505fede97ce4619f0a184884a29ea6dd7101b8061fda
2026-01-01T00:00:00-05:00
A clustering-based search for substructures in the Galactic plane and bulge using RR Lyrae stars as tracers
arXiv:2512.23846v1 Announce Type: new Abstract: Although many globular clusters (GCs) have been identified in the Galaxy, their population is estimated to be incomplete, especially in regions with strong crowding and interstellar extinction such as the Galactic bulge and plane.RR Lyrae stars, as bright standard candles...
https://arxiv.org/abs/2512.23846
Academic Papers
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ae8f7a8763d526a34c34f5a5bcf60d2169a7365acb337d065fdb4b50ca59cd59
2026-01-01T00:00:00-05:00
The ionization structure and chemical history in isolated H ii regions of dwarf galaxies with VIMOS/IFU II. The Leo A galaxy
arXiv:2512.23863v1 Announce Type: new Abstract: Study the ionized gas in metal-poor environments is key to understanding the mechanisms regulating galaxy evolution. However, most of the previous studies of extragalactic HII regions rely on unresolved observations of gaseous structures. We study the south-western, spati...
https://arxiv.org/abs/2512.23863
Academic Papers
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c086f4a14b5dadc8bfccd1ba23bba856e2de716e9e1935aef3f31fa32af4d43d
2026-01-01T00:00:00-05:00
The Tianlai-WIYN North Celestial Cap Redshift Survey
arXiv:2512.23899v1 Announce Type: new Abstract: We present the results of a small, low redshift spectroscopic survey of galaxies within 3 degrees of the North Celestial Pole (NCP) selected using V-band photometry obtained from the North Celestial Cap Survey (NCCS) (Gorbikov & Brosch 2014). The purpose of the current su...
https://arxiv.org/abs/2512.23899
Academic Papers
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66d02fe7dfebca16ec460928beff2e44ae9d20b8e92b06d5900a50a218dec84f
2026-01-01T00:00:00-05:00
Variation of the 2175 {\AA} extinction feature in Andromeda galaxy
arXiv:2512.23958v1 Announce Type: new Abstract: Extinction curves contain key information on interstellar dust composition and size distribution, with the 2175 {\AA} bump being the most prominent feature. We analyze 20 sightlines toward M31 using HST/STIS UV spectroscopy combined with multi-band photometry to character...
https://arxiv.org/abs/2512.23958
Academic Papers
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a996b359c1f7a797cf0f5cbd7becb5549257a8cca8d2b2aecc46aef8e232d28e
2026-01-01T00:00:00-05:00
Time-Dependent Accretion Disks with Magnetically Driven Winds: Green's Function Solutions
arXiv:2512.23999v1 Announce Type: new Abstract: We present Green's function solutions for a geometrically thin, one-dimensional Keplerian accretion disk that includes angular momentum extraction and mass loss due to magnetohydrodynamic (MHD) winds. The disk viscosity is assumed to vary radially as $\nu \propto r^{n}$. ...
https://arxiv.org/abs/2512.23999
Academic Papers
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229af6136a8b36c131d32a52a2038d0dc1fee84444e7ee51837404fef9d336ff
2026-01-01T00:00:00-05:00
Machine-learning approaches to dispersion measure estimation for fast radio bursts
arXiv:2512.24003v1 Announce Type: new Abstract: Fast radio bursts (FRBs) are bright, mostly millisecond-duration transients of extragalactic origin whose emission mechanisms remain unknown. As FRB signals propagate through ionized media, they experience frequency-dependent delays quantified by the dispersion measure (D...
https://arxiv.org/abs/2512.24003
Academic Papers
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0d9a7465700ef22101e21081304b42cdf93ca3cb407b102096be67d4559cd5f7
2026-01-01T00:00:00-05:00
Atmospheric Mass Flux as a Function of Ionospheric Emission on Unmagnetized Earth
arXiv:2512.24004v1 Announce Type: new Abstract: We explore ion escape from, and solar ion deposition to, \hll{an unmagnetized Earth-like planet}. We use RHybrid, an ion-kinetic electron-fluid code to simulate the global plasma interaction of unmagnetized Earth with the solar wind. We vary the global ionospheric emissio...
https://arxiv.org/abs/2512.24004
Academic Papers
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