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9273f9d8464274c994ecb8f65231c11e6fb2a7a851ea8da71e04dce597acf905 | 2026-01-23T00:00:00-05:00 | Existence and Non-Uniqueness of Ergodic Leray-Hopf Solutions to the Stochastic Power-Law Flows | arXiv:2412.08622v2 Announce Type: replace Abstract: We study long time behavior of shear-thinning fluid flows in $d \geq 3$ dimensions, driven by additive stochastic forcing of trace class, with power-law indices ranging from $1$ to $ \frac{2d}{d+2}$. We particularly focus on Leray-Hopf solutions, i.e. on analytically ... | https://arxiv.org/abs/2412.08622 | Academic Papers | svg |
9f14808bf4a72037b1408cc503db49d0a50b0dfa9f0c83fd52e6ac6402cad8b9 | 2026-01-23T00:00:00-05:00 | $N=1$ super Virasoro tensor categories | arXiv:2412.18127v3 Announce Type: replace Abstract: We show that the category of $C_1$-cofinite modules for the universal $N=1$ super Virasoro vertex operator superalgebra $\mathcal{S}(c,0)$ at any central charge $c$ is locally finite and admits the vertex algebraic braided tensor category structure of Huang-Lepowsky-Z... | https://arxiv.org/abs/2412.18127 | Academic Papers | svg |
d1a1f86db3b7c818f8b3745b1f478dae83a34f1143543564aec91fc02651b7b1 | 2026-01-23T00:00:00-05:00 | Categorical Diffusion of Weighted Lattices | arXiv:2501.03890v2 Announce Type: replace Abstract: We introduce a categorical framework for diffusion on network-structured data valued in weighted lattices, extending the Laplacian paradigm beyond the category of Hilbert spaces. Central to our approach is the Lawvere Laplacian, an endofunctor on the category of cocha... | https://arxiv.org/abs/2501.03890 | Academic Papers | svg |
22829a5ed96837daadd8cfed0ddd4540be54230f45beab2d9074c612f8d01d0a | 2026-01-23T00:00:00-05:00 | Geometrization of the local Langlands correspondence, motivically | arXiv:2501.07944v2 Announce Type: replace Abstract: Based on the formalism of rigid-analytic motives of Ayoub--Gallauer--Vezzani, we extend our previous work with Fargues from $\ell$-adic sheaves to motivic sheaves. In particular, we prove independence of $\ell$ of the $L$-parameters constructed there. | https://arxiv.org/abs/2501.07944 | Academic Papers | svg |
735f151f2fd412b3a3eb5963aafd51f96dc2dcb0f0f65dca1755d8fb201d6167 | 2026-01-23T00:00:00-05:00 | Explosive appearance of cores and bootstrap percolation on lattices | arXiv:2501.18976v2 Announce Type: replace Abstract: Consider the process where the $n$ vertices of a square $2$-dimensional torus appear consecutively in a random order. We show that typically the size of the $3$-core of the corresponding induced unit-distance graph transitions from $0$ to $n-o(n)$ within a single step... | https://arxiv.org/abs/2501.18976 | Academic Papers | svg |
656f1673d2726e8056624a5625b5cae932f64f3e57b4e5644ef1498536e26099 | 2026-01-23T00:00:00-05:00 | Local geometry of high-dimensional mixture models: Effective spectral theory and dynamical transitions | arXiv:2502.15655v3 Announce Type: replace Abstract: We study the local geometry of empirical risks in high dimensions via the spectral theory of their Hessian and information matrices. We focus on settings where the data, $(Y_\ell)_{\ell =1}^n \in \mathbb{R}^d$, are i.i.d. draws of a $k$-Gaussian mixture model, and the... | https://arxiv.org/abs/2502.15655 | Academic Papers | svg |
95b47e7a4a9a189260d9308bf559479f83bee3cf67e842549f04b78253830277 | 2026-01-23T00:00:00-05:00 | Integer-valued valuations | arXiv:2502.21144v2 Announce Type: replace Abstract: We obtain a complete characterization of planar monotone $\sigma$-continuous valuations taking integer values, without assuming invariance under any group of transformations. We further investigate the consequences of dropping monotonicity or $\sigma$-continuity and g... | https://arxiv.org/abs/2502.21144 | Academic Papers | svg |
1231a907b984aca8c52f39b1334df96b688632d8b105b3d47476b8d5aa8db609 | 2026-01-23T00:00:00-05:00 | Uniqueness of gauge covariant renormalisation of stochastic 3D Yang-Mills-Higgs | arXiv:2503.03060v2 Announce Type: replace Abstract: Local solutions to the 3D stochastic quantisation equations of Yang-Mills-Higgs were constructed in (arXiv:2201.03487), and it was shown that, in the limit of smooth mollifications, there exists a mass renormalisation of the Yang-Mills field such that the solution is ... | https://arxiv.org/abs/2503.03060 | Academic Papers | svg |
f928766b379788507a87c52620eda4239f0a8fb0a9e3b5281c66f76514440fa0 | 2026-01-23T00:00:00-05:00 | An isoperimetric inequality for lower order Neumann eigenvalues in Gauss space | arXiv:2503.15813v5 Announce Type: replace Abstract: We prove a sharp isoperimetric inequality for the harmonic mean of the first $m-1$ nonzero Neumann eigenvalues for bounded Lipschitz domains symmetric about the origin in Gauss space. Our result generalizes the Szeg\"o-Weinberger type inequality in Gauss space, as pro... | https://arxiv.org/abs/2503.15813 | Academic Papers | svg |
6a4cb409ee9be604469dd15c06fac5944139c92ac26988cd57e44bf47a75d4be | 2026-01-23T00:00:00-05:00 | The rationality problem for multinorm one tori | arXiv:2504.04078v3 Announce Type: replace Abstract: In this paper, we study the rationality problem for multinorm one tori, a natural generalization of norm one tori. For multinorm one tori that split over finite Galois extensions with nilpotent Galois group, we prove that stable rationality and retract rationality are... | https://arxiv.org/abs/2504.04078 | Academic Papers | svg |
03ca97465f0e798ca7e78a4712d34b57433553fd78af8fa3fe3e6038947127a7 | 2026-01-23T00:00:00-05:00 | On manifolds with almost non-negative Ricci curvature and integrally-positive $k^{th}$-scalar curvature | arXiv:2504.06865v3 Announce Type: replace Abstract: We consider manifolds with almost non-negative Ricci curvature and strictly positive integral lower bounds on the sum of the lowest $k$ eigenvalues of the Ricci tensor. If $(M^n,g)$ is a Riemannian manifold satisfying such curvature bounds for $k=2$, then we show that... | https://arxiv.org/abs/2504.06865 | Academic Papers | svg |
591f142b2e8fc981f787505363b55c00fca05b3fa2d2f551c246c9bb185d49ad | 2026-01-23T00:00:00-05:00 | Morita equivalences, moduli spaces and flag varieties | arXiv:2504.09293v2 Announce Type: replace Abstract: Double Bruhat cells in a connected complex semisimple Lie group $G$ emerged as a crucial concept in the work of S. Fomin and A. Zelevinsky on total positivity and cluster algebras. These cells are special instances of a broader class of cluster varieties known as gene... | https://arxiv.org/abs/2504.09293 | Academic Papers | svg |
20ea6697366b7202fc822ba24d3db0c1846424f26e7aeac1dc96f4bcafa6bbcb | 2026-01-23T00:00:00-05:00 | Deza graphs and regular polyhedra | arXiv:2504.19204v2 Announce Type: replace Abstract: We classify all regular polyhedra according to their type i.e., the collection of numbers of common neighbours that any pair of distinct vertices may have (polyhedra are planar, $3$-connected graphs). As an application, we recover the classification of planar Deza gra... | https://arxiv.org/abs/2504.19204 | Academic Papers | svg |
d525e08f8c4a0c390ba969c3c61270a614c30a507d13a2f35c5ef8057632da56 | 2026-01-23T00:00:00-05:00 | Towards the Colmez Conjecture | arXiv:2505.06541v2 Announce Type: replace Abstract: We prove a collection of results involving Colmez's periods and the Colmez Conjecture. Using Colmez's theory of periods of CM abelian varieties, we propose a definition for the height of a partial CM-type and prove that the Colmez conjecture follows from an arithmetic... | https://arxiv.org/abs/2505.06541 | Academic Papers | svg |
823885322b3c6b4fb0d57056faac9c2147bed458d69a639abbf7bf172aa44b26 | 2026-01-23T00:00:00-05:00 | Configurations, Tessellations and Tone Networks | arXiv:2505.08752v5 Announce Type: replace Abstract: The Eulerian tonnetz, which associates three minor chords to each major chord and three major chords to each minor chord, can be represented by a bipartite graph with twelve white vertices denoting major chords and twelve black vertices denoting minor chords. This so-... | https://arxiv.org/abs/2505.08752 | Academic Papers | svg |
f77fdffac21094ab4a91e659f5a15e6c335511d3e84421c040daeb96400eae90 | 2026-01-23T00:00:00-05:00 | Determining $t$-motives and dual $t$-motives in Anderson's theory | arXiv:2505.12779v2 Announce Type: replace Abstract: Anderson t-modules are analogs of abelian varieties in positive characteristic. Associated to such a t-module, there are its t-motive and its dual t-motive. When dealing with these objects, several questions occur which one would like to solve algorithmically. For exa... | https://arxiv.org/abs/2505.12779 | Academic Papers | svg |
94d98bd3a49bce2819d6bc4d13f20ddced32e1f9143677a6e14d8a3396813b98 | 2026-01-23T00:00:00-05:00 | Stack-sorting preimages and 0-1-trees | arXiv:2505.18295v2 Announce Type: replace Abstract: We define a class of partially labeled trees and use them to find simple proofs for two recent enumeration results of Colin Defant concerning stack-sorting preimages of permutation classes. | https://arxiv.org/abs/2505.18295 | Academic Papers | svg |
34a75f565828fe82ca9ed5edaa23effd3142dfbd0c9bc7e135a3f1163d5d8236 | 2026-01-23T00:00:00-05:00 | On the Markoff spectrum on the Hecke group of index six | arXiv:2506.08358v2 Announce Type: replace Abstract: The discrete part of the Markoff spectrum on the Hecke group of index 6 was determined by A.~Schmidt. In this paper, we study its Markoff and Lagrange spectra after the smallest accumulation point $4/\sqrt3$. We show that both the Markoff and Lagrange spectra below $4... | https://arxiv.org/abs/2506.08358 | Academic Papers | svg |
8fa8510804c4602e33e1fc3061e7ae49d3ae06ff1d42cf162852937a0766d45a | 2026-01-23T00:00:00-05:00 | Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality | arXiv:2506.10696v2 Announce Type: replace Abstract: This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces $S$, which depends on the topological type of $S$. In doing so, we study the weak Brill-Noether property for moduli... | https://arxiv.org/abs/2506.10696 | Academic Papers | svg |
f75c10ef6eb547dd80a9c6d4eb68e1c1e7f35b4adc391b31d854cf0cefa62d78 | 2026-01-23T00:00:00-05:00 | Fare Game: A Mean Field Model of Stochastic Intensity Control in Dynamic Ticket Pricing | arXiv:2506.13088v2 Announce Type: replace Abstract: We study the dynamic pricing of discrete goods over a finite selling horizon. One way to capture both the elastic and stochastic reaction of purchases to price is through a model where sellers control the intensity of a counting process, representing the number of sal... | https://arxiv.org/abs/2506.13088 | Academic Papers | svg |
047efb32dbe4a5159abab42766d20be580283f71cc7eaa3189f2607ed86b01e9 | 2026-01-23T00:00:00-05:00 | Asymptotic Velocity Profiles for Homoenergetic Rayleigh-Boltzmann Flows under Dominant Shear | arXiv:2506.15449v2 Announce Type: replace Abstract: In this paper, we study a particular class of solutions to the Rayleigh--Boltzmann equation, known in the nonlinear setting as \emph{homoenergetic solutions}. These solutions take the form $ g(x, v, t) = f(v - L(t)x, t),$ where the matrix $L(t)$ represents a shear flo... | https://arxiv.org/abs/2506.15449 | Academic Papers | svg |
f3c68186a5b832100f93951c086322a8e7c850832062b3f3180c0b0686da4173 | 2026-01-23T00:00:00-05:00 | Direct reconstruction of general elastic inclusions | arXiv:2507.04831v2 Announce Type: replace Abstract: The inverse problem of linear elasticity is to determine the Lam\'e parameters, which characterize the mechanical properties of a domain, from pairs of pressure activations and the resulting displacements on its boundary. This work considers the specific problem of re... | https://arxiv.org/abs/2507.04831 | Academic Papers | svg |
27b49e59c1bab65894b6cfc39174a9a7afaa25628d0d6f70aed654bdd74a0025 | 2026-01-23T00:00:00-05:00 | Extension Operators for Fractional Sobolev Spaces on Lipschitz Submanifolds | arXiv:2507.04869v2 Announce Type: replace Abstract: A well-known result is that any Lipschitz domain is an extension domain for $W^{s,p}$. This paper extends this result to Lipschitz subsets of compact Lipschitz submanifolds of $\mathbb{R}^n$. We adapt the construction of an extension operator for Lipschitz domains in ... | https://arxiv.org/abs/2507.04869 | Academic Papers | svg |
1474a21ba580761710fd51d6b337d8281df3680dab6de34873e75cbe75919355 | 2026-01-23T00:00:00-05:00 | Rigorous dense graph limit of a model for biological transportation networks | arXiv:2507.15829v2 Announce Type: replace Abstract: We rigorously derive the dense graph limit of a discrete model describing the formation of biological transportation networks. The discrete model, defined on undirected graphs with pressure-driven flows, incorporates a convex energy functional combining pumping and me... | https://arxiv.org/abs/2507.15829 | Academic Papers | svg |
786925e5b40b587b9c20d0a0706c679a4fa5efa3f716850e26705f2855835d98 | 2026-01-23T00:00:00-05:00 | Large-Amplitude Steady Electrohydrodynamic Solitary Waves with Constant Vorticity | arXiv:2508.01336v2 Announce Type: replace Abstract: This paper investigates solitary water waves propagating on the surface of a two-dimensional dielectric fluid subject to an electric field. The system is formulated as a nonlinear free boundary problem, with interfacial dynamics governed by the strong coupling between... | https://arxiv.org/abs/2508.01336 | Academic Papers | svg |
c92533e1b435bfaa5fc6b541a955cda24b349858d2ceae8567658023f91af2e4 | 2026-01-23T00:00:00-05:00 | The approach of cluster symmetry to Diophantine equations | arXiv:2508.02005v3 Announce Type: replace Abstract: This paper aims to employ a cluster-theoretic approach to provide a class of Diophantine equations whose solutions can be obtained by starting from initial solutions through mutations. We establish a novel framework bridging cluster theory and Diophantine equations th... | https://arxiv.org/abs/2508.02005 | Academic Papers | svg |
1161e4ebe487e38077b930eea28bbac289cc28d5454a37081164d117734b0110 | 2026-01-23T00:00:00-05:00 | Cup product of inhomogeneous Tate cochains, and application to tori over local fields that split over cyclic extensions | arXiv:2508.07288v3 Announce Type: replace Abstract: In this note we give formulas for cup product in Tate cohomology in terms of inhomogeneous cochains. Using one of these formulas, for a torus T defined over a non-archimedean local field K and splitting over a cyclic extension of K, we compute explicit cocycles repres... | https://arxiv.org/abs/2508.07288 | Academic Papers | svg |
97427cbdf0f073110de259413f4f07fc4f2549c8a69b687f919b5a5b5694abff | 2026-01-23T00:00:00-05:00 | Some generalizations of Camina pairs and orders of elements in cosets | arXiv:2508.13056v2 Announce Type: replace Abstract: In this paper, we investigate certain generalizations of Camina pairs. Let $H$ be a nontrivial proper subgroup of a finite group $G$. We first show that every nontrivial irreducible complex character of $H$ induces homogeneously to $G$ if and only if for every $x\in G... | https://arxiv.org/abs/2508.13056 | Academic Papers | svg |
3a44f15bbee5e0d8665778028c5f971e89329657774b9f0c4f5153a755bec089 | 2026-01-23T00:00:00-05:00 | GW/DT invariants and 5D BPS indices for strips from topological recursion | arXiv:2508.15459v2 Announce Type: replace Abstract: Topological string theory partition function gives rise to Gromov-Witten invariants, Donaldson-Thomas invariants and 5D BPS indices. Using the remodeling conjecture, which connects Topological Recursion with topological string theory for toric Calabi-Yau threefolds, w... | https://arxiv.org/abs/2508.15459 | Academic Papers | svg |
0c4259a92453ab7423e625f842085f334c468d16858dde09999f22d644282e45 | 2026-01-23T00:00:00-05:00 | Residual finiteness properties of some of Halls groups | arXiv:2508.16452v3 Announce Type: replace Abstract: In this article we study a class of central extensions of $\mathbb{Z}\wr\mathbb{Z}$, as first described by Hall. On the one hand, we consider groups of this type with cyclic centre, our construction yields a rich class of groups. In particular we obtain a group that i... | https://arxiv.org/abs/2508.16452 | Academic Papers | svg |
a1c631f2dad7b60add8c5c54adc7a8f4d6831967a61e8869a1cb0d7fc5b86057 | 2026-01-23T00:00:00-05:00 | Dynamics from iterated averaging | arXiv:2508.21416v3 Announce Type: replace Abstract: We prove that for a standard Lebesgue space $X$, the strong operator closure of the semigroup generated by conditional expectations on $L^\infty(X)$ contains the group of measure-preserving automorphisms. This is based on a solution to the following puzzle: given $n$ ... | https://arxiv.org/abs/2508.21416 | Academic Papers | svg |
9f805e83602b51509e234e3b9e3ed5055863d507d6364096aed5101e62b65acd | 2026-01-23T00:00:00-05:00 | Time-inconsistent reinsurance and investment optimization problem with delay under random risk aversion | arXiv:2509.15506v2 Announce Type: replace Abstract: This paper considers a newly delayed reinsurance and investment optimization problem incorporating random risk aversion, in which an insurer pursues maximization of the expected certainty equivalent of her/his terminal wealth and the cumulative delayed information of ... | https://arxiv.org/abs/2509.15506 | Academic Papers | svg |
c936c56029230a95911c11fce4a1fc98e01bb2d972997155fc76f2a95a09d257 | 2026-01-23T00:00:00-05:00 | A non-linear Roth theorem for thick Cantor sets | arXiv:2509.17880v3 Announce Type: replace Abstract: We prove that for any function $f$ satisfying certain mild conditions and any Cantor set $K$ with Newhouse thickness greater than $1$, there exists $x\in K$ and $t>0$ such that \[ \{x-t,x,x+f(t)\}\subset K. \] This is an extension of previous work on the existence of ... | https://arxiv.org/abs/2509.17880 | Academic Papers | svg |
b5931db159d7d106c67a0b7556faddd2dbe8c0c193a10d4f6dc94e1d9be5e8bd | 2026-01-23T00:00:00-05:00 | On the torsion-free nilpotent fundamental groups of smooth quasi-projective varieties of rank up to seven | arXiv:2510.09026v2 Announce Type: replace Abstract: Let $X$ be a smooth quasi-projective variety. Assume that the (topological) fundamental group $\pi_1(X, x)$ is torsion-free nilpotent. We show that if the first Betti number $b_1(X) \le 3$, then $\pi_1(X, x)$ is isomorphic to either $\mathbb{Z}^n$ for $n = 1, 2, 3$, a... | https://arxiv.org/abs/2510.09026 | Academic Papers | svg |
cd08cafb1dc08ea0ada217e9ecaf4f2b788758fd14663adeb2c09c180ddfa996 | 2026-01-23T00:00:00-05:00 | General Casorati inequalities and implications for Riemannian maps and Riemannian submersions | arXiv:2510.12760v2 Announce Type: replace Abstract: This paper presents general forms of Casorati inequalities for Riemannian maps and Riemannian submersions between Riemannian manifolds. Using these general forms, we obtain Casorati inequalities for Riemannian maps (resp. submersions) whose target (resp. source) space... | https://arxiv.org/abs/2510.12760 | Academic Papers | svg |
71b77d6194057c59e72a2f13c4e6ade959b608c03d7df46f3419be5ea39a0018 | 2026-01-23T00:00:00-05:00 | A Generalization of the Fox H-function | arXiv:2510.15920v2 Announce Type: replace Abstract: In this paper we present a generalization of the Fox H-function called Fox-Barnes J-function. Like the Fox H-function, it is defined as a contour integral in the complex plane, but instead of an integrand given by a ratio of products of gamma functions involving sever... | https://arxiv.org/abs/2510.15920 | Academic Papers | svg |
27160db9ec351b031f78bdffbe408caca694da72c29b602fa6d4d7f6f67719a0 | 2026-01-23T00:00:00-05:00 | Through the Grapevine: Vineyard Distance as a Measure of Topological Dissimilarity | arXiv:2510.24472v2 Announce Type: replace Abstract: We introduce a new measure of distance between datasets, based on vineyards from topological data analysis, which we call the vineyard distance. Vineyard distance measures the extent of topological change along an interpolation from one dataset to another, either alon... | https://arxiv.org/abs/2510.24472 | Academic Papers | svg |
483bbc94332f4748ada3924a2812561c09b3110153b670fea09ae9750ff1fdf3 | 2026-01-23T00:00:00-05:00 | Six-Functor Formalisms | arXiv:2510.26269v2 Announce Type: replace Abstract: These are lecture notes for a course in Winter 2022/23, updated and completed in October 2025. The goal of the lectures is to present some recent developments around six-functor formalisms, in particular: the abstract theory of 6-functor formalisms; the 2-category of ... | https://arxiv.org/abs/2510.26269 | Academic Papers | svg |
3b8abaecc1c520c1f742269eece159a37cea404961d6cd320d59e354fc17fda1 | 2026-01-23T00:00:00-05:00 | On Singular Integrals and Quantitative Rectifiability in Parabolic Space and the Heisenberg Group | arXiv:2510.26934v2 Announce Type: replace Abstract: David and Semmes proved that if all CZOs (of suitable dimension) are bounded with respect to an Ahlfors regular measure, then the measure is uniformly rectifiable. We extend this theorem to the parabolic space and the first Heisenberg group. | https://arxiv.org/abs/2510.26934 | Academic Papers | svg |
934e059a15881d7da0ead2853bb083e54f724d10c4c52371d4f55e86578e59d4 | 2026-01-23T00:00:00-05:00 | Fundamental Lemma for Rank One Spherical Varieties of Classical Types | arXiv:2511.05377v2 Announce Type: replace Abstract: According to the relative Langlands functoriality conjecture, an admissible morphism between the $L$-groups of spherical varieties should induce a functorial transfer of the corresponding local and global automorphic spectra. Via the relative trace formula approach, t... | https://arxiv.org/abs/2511.05377 | Academic Papers | svg |
9e2c6955d48357c3f8b527a3f3ee4c01ff973514a473db0308aaf93aedb45082 | 2026-01-23T00:00:00-05:00 | Poncelet Triangles and Tetragons over Finite Fields | arXiv:2511.06347v3 Announce Type: replace Abstract: In the projective plane over a finite field of characteristic not equal to 2, we compute the probability that a randomly selected pair of distinct conics $(\mathscr{A},\mathscr{B})$, with $\mathscr{A}$ smooth or singular and $\mathscr{B}$ smooth, in a fixed pencil of ... | https://arxiv.org/abs/2511.06347 | Academic Papers | svg |
277d9658d4afa8daa91458dbe4e2af424f88d34f4a00274b9b6e7a3da97d9e16 | 2026-01-23T00:00:00-05:00 | Geometrically vertex decomposable open neighborhood ideals | arXiv:2512.12886v2 Announce Type: replace Abstract: In this paper, we prove that the open neighborhood ideal of a TD-unmixed tree is geometrically vertex decomposable. This result implies that the associated Stanley-Reisner complex is vertex decomposable. We further demonstrate that Cohen-Macaulay open neighborhood ide... | https://arxiv.org/abs/2512.12886 | Academic Papers | svg |
e4016edeaa826c6da89225f4741396bf4fd7eb3cfdec5988afcdf6347b0c7ff9 | 2026-01-23T00:00:00-05:00 | Erd\H{o}s-Wintner theorem for linear recurrent bases | arXiv:2512.20882v2 Announce Type: replace Abstract: Let $(G_n)_{n\geqslant 0}$ be a linear recurrence sequence defining a numeration system and satisfying mild structural hypotheses. For real-valued G-additive functions (additive in the greedy G-digits), we establish an Erd\H{o}s-Wintner-type theorem: convergence of tw... | https://arxiv.org/abs/2512.20882 | Academic Papers | svg |
969c5f8a1c6b61c9b60bb4460807571b3eca8a121b5640883babd1bdfd99eaa7 | 2026-01-23T00:00:00-05:00 | Piecewise Smooth Dynamical Systems Regularized by Convolution | arXiv:2601.00697v2 Announce Type: replace Abstract: We present a general regularization procedure for piecewise smooth vector fields whose discontinuity locus is a variety of normal crossings type. We show that such regularization can be smoothed through a finite sequence of blowings-up, thereby reducing the problem to... | https://arxiv.org/abs/2601.00697 | Academic Papers | svg |
efa0697af3fec289fc54852814d7f3d8ad3f8c614bde01173e20d922562347a4 | 2026-01-23T00:00:00-05:00 | Two algebraic proofs of the transcendence of $\mathrm{e}$ based on formal power series | arXiv:2601.01019v5 Announce Type: replace Abstract: We remind the classical analytical proof of the transcendence of $\mathrm{e}$ due to Hilbert. Then, using formal power series, we give two algebraic semiformal proofs of this result. The first proof is a specialization of the proof of the Lindemann-Weierstrass theorem... | https://arxiv.org/abs/2601.01019 | Academic Papers | svg |
e1c4bcf4e9d0dfcd9c8502aa0000706c5bafb0a67afe65b22b871110b4e4be38 | 2026-01-23T00:00:00-05:00 | Distributional Limits for Eigenvalues of Graphon Kernel Matrices | arXiv:2601.04584v2 Announce Type: replace Abstract: We study the fluctuation behavior of individual eigenvalues of kernel matrices arising from dense graphon-based random graphs. Under minimal integrability and boundedness assumptions on the graphon, we establish distributional limits for simple, well-separated eigenva... | https://arxiv.org/abs/2601.04584 | Academic Papers | svg |
3f3dd58b091bfdc2efe42fdde9ab1fcc389821ee2bccc30a399d07d71615c18f | 2026-01-23T00:00:00-05:00 | On the effects of protection zone and directed population flux in prey-predator dynamics | arXiv:2601.05054v2 Announce Type: replace Abstract: We study a spatial predator-prey model in which prey can enter a protection zone (refuge) inaccessible to predators, while predators exhibit directed movement toward prey-rich regions. The directed movement is modeled by a far-sighted population flux motivated by clas... | https://arxiv.org/abs/2601.05054 | Academic Papers | svg |
07ea167a9f55109db03a9a60ce4d9164f2ef4e2a7d6022496a1892a3b17f7d15 | 2026-01-23T00:00:00-05:00 | Foundations and Fundamental Properties of a Two-Parameter Memory-Weighted Velocity Operator | arXiv:2601.05122v2 Announce Type: replace Abstract: We introduce and analyze a **memory-weighted velocity operator** \(\mathscr{V}_{\alpha,\beta}\) as a mathematical framework for describing rates of change in systems with time-varying, power-law memory. The operator employs two independent continuous exponents \(\alph... | https://arxiv.org/abs/2601.05122 | Academic Papers | svg |
4e7c12f22e48b0de00a408874f1f0c1e2261220d4b782a0846f20c23016b99ec | 2026-01-23T00:00:00-05:00 | Computational Evidence Against Quadratic-Cubic Factorization for the Second Cuboid Quintic | arXiv:2601.07899v2 Announce Type: replace Abstract: Let $Q_{p,q}(t)\in\mathbb{Z}[t]$ be Sharipov's even monic degree-$10$ second cuboid polynomial depending on coprime integers $p\neq q>0$. Writing $Q_{p,q}(t)$ as a quintic in $t^{2}$ produces an associated monic quintic polynomial. After the weighted normalization $r=... | https://arxiv.org/abs/2601.07899 | Academic Papers | svg |
e28fa24f85c8a11ae290cefc94c796a9ba6a343b4eda90c8fc44109e0c1bf668 | 2026-01-23T00:00:00-05:00 | From carbon management strategies to implementation: Modeling and physical simulation of CO2 pipeline infrastructure -- a case study for Germany | arXiv:2601.15090v2 Announce Type: replace Abstract: Carbon capture and storage or utilization (CCUS) will play an important role to achieve climate neutrality in many economies. Pipelines are widely regarded as the most efficient means of CO2 transport; however, they are currently non-existent. Policy-makers and compan... | https://arxiv.org/abs/2601.15090 | Academic Papers | svg |
6adb05b19609d7809226c7744d60d93235e51cd57f10fec02bf77f236dca90a3 | 2026-01-23T00:00:00-05:00 | On the number of permutation-twisted dot products | arXiv:2601.15276v2 Announce Type: replace Abstract: For distinct real numbers $a_1, \ldots, a_n$ and distinct real numbers $b_1, \ldots, b_n$, consider the sum $S=\sum_{i=1}^n a_i b_{\pi(i)}$ as $\pi$ ranges over the permutations of $[n]$. We show that this sum always assumes at least $\Omega(n^3)$ distinct values, whi... | https://arxiv.org/abs/2601.15276 | Academic Papers | svg |
6bc81a79f17c4b5784b077429e5bd040ab176d62ee767a3ecae1f68f285c39b4 | 2026-01-23T00:00:00-05:00 | Utility maximization under endogenous pricing | arXiv:2005.04312v5 Announce Type: replace-cross Abstract: We study the expected utility maximization problem of a large investor who is allowed to make transactions on tradable assets in an incomplete financial market with endogenous permanent market impacts. The asset prices are assumed to follow a nonlinear price cur... | https://arxiv.org/abs/2005.04312 | Academic Papers | svg |
66edfa7395a082d94cfc3c138ab90136dfd7be1fbba026b97c46558f4454cb50 | 2026-01-23T00:00:00-05:00 | Black holes in the expanding Universe | arXiv:2405.16673v3 Announce Type: replace-cross Abstract: The McVittie metric does not describe a physical black hole in an expanding Universe because the curvature scalar and pressure at its event horizon are infinite. We show that extending this metric to an inhomogeneous scale factor, which depends on both the time ... | https://arxiv.org/abs/2405.16673 | Academic Papers | svg |
ccd98ef7bf089e4d55aafe0095327295608fa4cf517d7a89994d0f2fa88afaa5 | 2026-01-23T00:00:00-05:00 | New Insights into Population Dynamics from the Continuous McKendrick Model | arXiv:2504.21103v3 Announce Type: replace-cross Abstract: This article presents a comprehensive study of the continuous McKendrick model, which serves as a foundational framework in population dynamics and epidemiology. The model is formulated through partial differential equations that describe the temporal evolution ... | https://arxiv.org/abs/2504.21103 | Academic Papers | svg |
8743ccb0645fa36e4f2f12597d4b653aebda1d08ae8a63cf7708de0f25d1ae96 | 2026-01-23T00:00:00-05:00 | Erasure cost of a quantum process: A thermodynamic meaning of the dynamical min-entropy | arXiv:2506.05307v4 Announce Type: replace-cross Abstract: The erasure of information is fundamentally an irreversible logical operation, carrying profound consequences for the energetics of computation and information processing. We investigate the thermodynamic costs associated with erasing (and preparing) quantum pro... | https://arxiv.org/abs/2506.05307 | Academic Papers | svg |
27bc431c1ea530c83f60ad37e56fed3551310dd4e524b498f8bb050453705d66 | 2026-01-23T00:00:00-05:00 | Einstein Electron and Local Branching: Unitarity without Many Worlds --Local Hilbert spaces, boundaries, and quantum nonlocality | arXiv:2507.16123v2 Announce Type: replace-cross Abstract: Traditional interpretations of quantum mechanics often present a dichotomy: either the wavefunction collapses upon measurement (Copenhagen), violating unitarity, or the entire universe branches into countless parallel worlds (Many-Worlds), with significant ontol... | https://arxiv.org/abs/2507.16123 | Academic Papers | svg |
7611edcf8f2e4b359b22c08778d3afbd0c3679b40ec6dfd62818950cd3e08e04 | 2026-01-23T00:00:00-05:00 | Inference in pseudo-observation-based regression using (biased) covariance estimation and naive bootstrapping | arXiv:2510.06815v2 Announce Type: replace-cross Abstract: The pseudo-observation method is regularly applied to time-to-event data. However, to date such analyses have relied on not formally verified statements or ad-hoc methods regarding covariance estimation. This paper strives to close this gap in the literature. To... | https://arxiv.org/abs/2510.06815 | Academic Papers | svg |
a59b18fe6c63fe071db33987813a25b5b02b85578872004a9b1628cdeac0b447 | 2026-01-23T00:00:00-05:00 | Thermodynamics of quantum processes: An operational framework for free energy and reversible athermality | arXiv:2510.12790v3 Announce Type: replace-cross Abstract: We explore the thermodynamics of quantum processes (quantum channels) by axiomatically introducing the free energy for channels, defined via the quantum relative entropy with an absolutely thermal channel whose fixed output is in equilibrium with a thermal reser... | https://arxiv.org/abs/2510.12790 | Academic Papers | svg |
83865cc3ed82ea72a87eccd4dfa49d2e24416605b2c0c11417020f325afd0579 | 2026-01-23T00:00:00-05:00 | An $\Omega(\log(N)/N)$ Lookahead is Sufficient to Bound Costs in the Overloaded Loss Network | arXiv:2601.14538v2 Announce Type: replace-cross Abstract: I study the simplest model of revenue management with reusable resources: admission control of two customer classes into a loss queue. This model's long-run average collected reward has two natural upper bounds: the deterministic relaxation and the full-informat... | https://arxiv.org/abs/2601.14538 | Academic Papers | svg |
57df3c1e7e0125b60ff3fc233576b71276441a4e3bee66c91a7ca3b513f632a6 | 2026-01-23T00:00:00-05:00 | LISA and the LISA Science Team | arXiv:2601.15365v1 Announce Type: new Abstract: LISA, the Laser Interferometer Space Antenna, due to launch mid-2035, is a large class space mission by the European Space Agency (ESA). In partnership with NASA and ESA-member states, ESA is on track to launch what is expected to be the first space-based gravitational wa... | https://arxiv.org/abs/2601.15365 | Academic Papers | svg |
84c1c533f4d2d279dcd64bb1ebc6914c167b8cb0527694c8ec02216a4bb173a6 | 2026-01-23T00:00:00-05:00 | Non-uniform Antenna Loading Effect on Embedded Element Patterns and Application to Fault Detection | arXiv:2601.15367v1 Announce Type: new Abstract: A new, iterative algorithm is presented to calculate the Embedded Element Pattern (EEP) tranformation from a set of patterns computed for a uniform antenna port loading (scaled identinty matrix) to a set of those computed for a non-uniform one (arbitrary diagonal matrix).... | https://arxiv.org/abs/2601.15367 | Academic Papers | svg |
6035c6632f4fee276e5f9750ce8a9fedacda12db9e4b6973ef6d69251718f8a3 | 2026-01-23T00:00:00-05:00 | Digging into the Interior of Hot Cores with ALMA (DIHCA). VII. Disk candidates around high-mass stars and evidence of anisotropic infall | arXiv:2601.15371v1 Announce Type: new Abstract: We study the kinematics of condensations in 30 fields forming high-mass stars with ALMA at a high-resolution of ~0.08'' on average (~230 au). The presence of disks is important for feeding high-mass stars without feedback halting growth as their masses increase. In the se... | https://arxiv.org/abs/2601.15371 | Academic Papers | svg |
18c5f49d7a0f138802db04e0edae452837917d1614c1d1f8633bcb74ab65438e | 2026-01-23T00:00:00-05:00 | Hierarchical bayesian inference: constraining population distribution of dark matter halo shapes via stellar streams | arXiv:2601.15373v1 Announce Type: new Abstract: Stellar streams, the debris of tidally disrupted satellites, trace their host's gravitational potential and thus probe dark matter halo structure. While six-dimensional phase-space data of Galactic streams enable precise dark matter halo modelling in the Milky Way, stream... | https://arxiv.org/abs/2601.15373 | Academic Papers | svg |
cc0ec0b1800f33f93d69c6084cb31623741badc54662ed421e48cb7969d291be | 2026-01-23T00:00:00-05:00 | What factors shape the radio luminosity of star-forming galaxies? A new calibration from LoTSS-DR2 | arXiv:2601.15374v1 Announce Type: new Abstract: Radio observations offer a dust-unobscured view of galaxy star formation via the radio continuum-star formation rate (RC--SFR) relation. Emerging evidence of a stellar mass dependence in the RC--SFR relation raises the broader question of how other galaxy properties may i... | https://arxiv.org/abs/2601.15374 | Academic Papers | svg |
658fad2e17d3efee21771e0d45b8037a6edce9879814f38cf4ae4dfba9564ad2 | 2026-01-23T00:00:00-05:00 | The Back-in-time Void Finder: dynamical identification of cosmic voids through optimal transport reconstruction | arXiv:2601.15378v1 Announce Type: new Abstract: Cosmic voids have increasingly emerged as a powerful cosmological probe. However, their large spatial extent and intrinsically underdense environments make their identification highly sensitive to shot noise, redshift-space distortions (RSD), and observational systematics... | https://arxiv.org/abs/2601.15378 | Academic Papers | svg |
b12634bfb0107be5df41543617b65ec9d761dd23db53b400524723c04ecfe049 | 2026-01-23T00:00:00-05:00 | Optimizing Optical Searches for Supermassive Black Hole Binaries in AGN Light Curves: Fourier versus Bayesian Periodicity Detection | arXiv:2601.15379v1 Announce Type: new Abstract: Simulations predict that supermassive black hole binaries (SMBHBs) will exhibit periodic brightness variations that may exceed the stochastic variability intrinsic to active galactic nuclei (AGN). In this paper, we simulate SMBHBs with damped random walk (DRW) AGN variabi... | https://arxiv.org/abs/2601.15379 | Academic Papers | svg |
6f8c0f850827f50d638d08998ea1ab7ec2ee684cab9277ab280323d3123070cf | 2026-01-23T00:00:00-05:00 | Blazars define a stable celestial reference frame | arXiv:2601.15381v1 Announce Type: new Abstract: Recent work has shown that optical-radio position offsets and radio position variability are inversely correlated with the photometric variability of active galactic nuclei (AGN). A key prediction of these findings is that a reference frame constructed using highly photom... | https://arxiv.org/abs/2601.15381 | Academic Papers | svg |
4f5a1d4f92af8b0ac9da69102b715c5fb43c968510fa0050e4040aef150284ea | 2026-01-23T00:00:00-05:00 | A Stratification in Magnetic Field Structures: The Radio Outflow in NGC 4151 | arXiv:2601.15382v1 Announce Type: new Abstract: The nature of radio outflows in radio-quiet AGN remains poorly understood. In this study, we present kpc-scale polarization observations of the Seyfert galaxy NGC\,4151 using the Karl G. Jansky Very Large Array (VLA) in B-array at 3 and 10 GHz. We find that the inferred m... | https://arxiv.org/abs/2601.15382 | Academic Papers | svg |
0e105f3be67996a370e8ee9f58ed1506db73f672a995c41d8d839cc0cfe23a3f | 2026-01-23T00:00:00-05:00 | An Investigation of 5-year Simultaneous X-ray and Radio Light Curves of the Dwarf Seyfert Galaxy UGC 6728 | arXiv:2601.15383v1 Announce Type: new Abstract: We present serendipitous simultaneous radio and X-ray light curves of the dwarf Seyfert galaxy UGC 6728 spanning 5 years. The X-ray light curve exhibits a flaring period, followed by a gradual rise and decline. Throughout these events, the X-ray hardness ratio and spectru... | https://arxiv.org/abs/2601.15383 | Academic Papers | svg |
7cb4091a450fc4163146d688e750e593a0381b83eba959c7fad6ec61e651094d | 2026-01-23T00:00:00-05:00 | An Analysis of AGN Feedback in the Compact Galaxy Group Stephan's Quintet | arXiv:2601.15384v1 Announce Type: new Abstract: Compact galaxy groups are ideal laboratories for studying the effects of interactions between AGN and multiple nearby galaxies. Recent JWST observations of the nearby compact group Stephan's Quintet highlight tidal flows between the interacting galaxies as well as outflow... | https://arxiv.org/abs/2601.15384 | Academic Papers | svg |
a6221a15f165439f41de6766535ef602140fc230f93440c2d71d1388f76d9b81 | 2026-01-23T00:00:00-05:00 | Solar twins in Gaia DR3 GSP-Spec I. Building a large catalog of Solar twins with ages | arXiv:2601.15387v1 Announce Type: new Abstract: [Abbreviated] Context. Solar twins, stars whose stellar parameters (Teff, log g, and [M/H]) are very close to the Solar ones, offer a unique opportunity to investigate Galactic archaeology with very high accuracy and precision. However, most previous catalogs of Solar twi... | https://arxiv.org/abs/2601.15387 | Academic Papers | svg |
d03256b80bf91915810bc63b018c3b0ac9e74b4ebddd8be93b7f76122624c853 | 2026-01-23T00:00:00-05:00 | Dynamic shocks powered by a wide, relativistic, super-Eddington outflow launched by an accreting neutron star in the mid-20th century | arXiv:2601.15400v1 Announce Type: new Abstract: Accreting systems can launch powerful outflows which interact with the surrounding medium. We combine new radio observations of the accreting neutron star X-ray binary (XRB) Circinus X-1 (Cir X-1) with archival radio observations going back 24 years. The $\sim3$ pc scale ... | https://arxiv.org/abs/2601.15400 | Academic Papers | svg |
e841de849bc1e39f76852f5125e5c79e84da88e7687572edda60fda8ce52cf5e | 2026-01-23T00:00:00-05:00 | The age sequence of young clusters in Perseus: Estimating ages from mass distributions | arXiv:2601.15413v1 Announce Type: new Abstract: Establishing ages for young clusters is key for properly tracking the star formation history of a region. In this paper we investigate a new approach to estimating ages for young populations, based on the well-founded assumption that the initial mass function is the same ... | https://arxiv.org/abs/2601.15413 | Academic Papers | svg |
62ab285a010ff3808c373e31a2f89a355ab05eb60871478ef9473d7fed54d0bd | 2026-01-23T00:00:00-05:00 | Spin-down changes in PSR B0540-69 induced by a drift of the magnetic axis | arXiv:2601.15425v1 Announce Type: new Abstract: The dynamics of the solid crust + magnetic field lines of pulsars is a much debated issue, and remains unsettled after 50 years. Some pieces of evidence have emerged to complete and confirm theoretical calculations and expectations. We discuss in the present work an inter... | https://arxiv.org/abs/2601.15425 | Academic Papers | svg |
ecd39d031fe274c3f6a5129522d012d2500dae76511d1b4d043644ed24e5d340 | 2026-01-23T00:00:00-05:00 | Supernova interactions with aspherical circumstellar material I: calculations of light curves, AB magnitudes, spectra, and polarisation | arXiv:2601.15428v1 Announce Type: new Abstract: We present an upgraded detailed numerical calculations of supernova (SN) interactions with significantly aspherical circumstellar matter (CSM), primarily formed as a disc or bipolar lobes. The circumstellar disc can arise as a result of, for example, mass transfer in a bi... | https://arxiv.org/abs/2601.15428 | Academic Papers | svg |
f1089ed079d7b613d5936eee2c982e0ecf90b0fdad53c77ca0aa04fb6289f261 | 2026-01-23T00:00:00-05:00 | The role of gas stripping in the quenching of satellite galaxies using SHARK v2.0 | arXiv:2601.15435v1 Announce Type: new Abstract: Observational studies have made substantial progress in characterizing quenching as a function of stellar mass and environment, but they are often limited in their ability to constrain quenching timescales and to determine the dominant environmental process responsible fo... | https://arxiv.org/abs/2601.15435 | Academic Papers | svg |
ae32f82842ab1541715d03181636c490fb5843928619f3bd6a25dd67f09fe3f2 | 2026-01-23T00:00:00-05:00 | Perihelion Asymmetry in the Water Production Rate of the Interstellar Object 3I/ATLAS | arXiv:2601.15443v1 Announce Type: new Abstract: 3I/ATLAS is an interstellar object whose activity provides critical insights into its composition and origin. However, due to its orbital geometry, the object is too close to the Sun near perihelion to be observed from the ground, and space-based measurements are therefor... | https://arxiv.org/abs/2601.15443 | Academic Papers | svg |
8bd958170b51bcf3e6b23a841756bd35aee749ee19b6e6bf74ea1f49b899bb27 | 2026-01-23T00:00:00-05:00 | The long quest for vacuum birefringence in magnetars: 1E 1547.0-5408 and the elusive smoking gun | arXiv:2601.15452v1 Announce Type: new Abstract: Magnetars are now known to be among the most strongly polarized celestial sources in X-rays. Here we report on the $500\,\mathrm{ks}$ observation of the magnetar 1E 1547.0-5408 performed by the Imaging X-ray Polarimetry Explorer (IXPE) in March 2025. The IXPE spectrum is ... | https://arxiv.org/abs/2601.15452 | Academic Papers | svg |
24962850f0994426500b90b0b3eb23913245cf8c9606e1803e6ed3d34837ad23 | 2026-01-23T00:00:00-05:00 | Constraining nonminimal f(T) gravity from Primordial Nucleosynthesis to Late-Universe observations | arXiv:2601.15460v1 Announce Type: new Abstract: We present a multi-epoch test of f(T) gravity with nonminimal torsion-matter coupling, combining early- and late-Universe observations. At the MeV scale, Big-Bang Nucleosynthesis constrains the fractional variation of the weak freeze-out temperature, |{\delta}{\tau}_f/{\t... | https://arxiv.org/abs/2601.15460 | Academic Papers | svg |
386ee7849873a4e55976cc63c22d7c26ff8746dbc3ebb29f48af94d5d1f79bc7 | 2026-01-23T00:00:00-05:00 | Two Fluid Quantum Bouncing Cosmology I: Theoretical Model | arXiv:2601.15542v1 Announce Type: new Abstract: Bouncing cosmologies offer an alternative to inflation by resolving the initial singularity through a contracting phase followed by a bounce into expansion. In many such models, the contracting phase is dominated by a single matter component, typically pressureless dust, ... | https://arxiv.org/abs/2601.15542 | Academic Papers | svg |
544ab183f0f9c6f7e44ea0dde1ccbeb9add01bf60af25d405905bad5246c8bf8 | 2026-01-23T00:00:00-05:00 | Source identification for the Swift-BAT 150-month hard X-ray catalog using soft X-ray observations | arXiv:2601.15577v1 Announce Type: new Abstract: We present a comprehensive catalog of 251 potential counterparts for 250 unassociated hard X-ray sources detected in the Swift Burst Alert Telescope (BAT) 150-month hard X-ray survey. Over 150 months of observation, BAT has detected 2339 sources in the 15-150 keV energy r... | https://arxiv.org/abs/2601.15577 | Academic Papers | svg |
8e0f5283e28a2fd466b714c9e89d18e7f84fbf6740af03965d874684cfe25a6d | 2026-01-23T00:00:00-05:00 | Mapping dark matter and the emergence of large-scale structure | arXiv:2601.15583v1 Announce Type: new Abstract: We discuss a potential survey to map dark matter and the emergence of large-scale structure to redshift z ~ 1.5 (baseline) or z~3.5 (with near-IR extension) using a massively multiplexed spectrograph on a 10m-class telescope, such as the proposed Widefield Spectroscopic T... | https://arxiv.org/abs/2601.15583 | Academic Papers | svg |
71ebca9bf1a94e3eec37d2f94ea7f70496f307633e70db5748ad0ef30d3fa15c | 2026-01-23T00:00:00-05:00 | Multi-band Reconstruction of Sixteen Gravitational Lens Systems using PISCO data | arXiv:2601.15585v1 Announce Type: new Abstract: Next-generation surveys such as the Euclid survey, the Legacy Survey of Space and Time (LSST), and the China Space Station Telescope (CSST) survey are expected to discover ~10^5 galaxy-galaxy scale strong gravitational lenses. This motivates the development of scalable an... | https://arxiv.org/abs/2601.15585 | Academic Papers | svg |
91d03479d403e804d3fe21b0e6f3b50b14515531253fcfe189e3ce8e1fbbd063 | 2026-01-23T00:00:00-05:00 | A compact object with a K type star companion in the solar neighborhood: a wide post common envelope binary with a white dwarf candidate | arXiv:2601.15619v1 Announce Type: new Abstract: Post-common envelope binaries (PCEBs) consisting of a white dwarf (WD) plus a main-sequence (MS) star can constrain current prescriptions of common envelope evolution (CEE) and calibrate theoretical models of binary formation and evolution. Most PCEBs studied to date have... | https://arxiv.org/abs/2601.15619 | Academic Papers | svg |
cfd67a138860834aed745183aeb7fcfcc45aa7db8c628fe4f770d73c301671fa | 2026-01-23T00:00:00-05:00 | The initial spin matters: the impact of rapid rotation on magnetic-field amplification at merger | arXiv:2601.15650v1 Announce Type: new Abstract: A couple of milliseconds after the merger of a binary system of neutron stars can play a fundamental role in amplifying the comparatively low initial magnetic fields into magnetar strengths. The basic mechanism responsible for this amplification is the Kelvin-Helmholtz in... | https://arxiv.org/abs/2601.15650 | Academic Papers | svg |
fb0705b272c8c354fef18dea9a65598752ec5729ee8d110f3369e348d5d3344e | 2026-01-23T00:00:00-05:00 | K-DRIFT Science Theme: Galactic Cirrus Clouds and Circumgalactic Medium | arXiv:2601.15665v1 Announce Type: new Abstract: In this paper, we review the extended halo material and the circumgalactic medium (CGM), including both dust and gas, and discuss promising science cases that could be realized using the KASI Deep Rolling Imaging Fast Telescope (K-DRIFT). Scattered starlight from cirrus c... | https://arxiv.org/abs/2601.15665 | Academic Papers | svg |
d2d4f792b1558772210caacd2b9f3d06d279afb1b6a73f07fbf2a71d6b65ea18 | 2026-01-23T00:00:00-05:00 | The reason for the occurrence of W-type contact binaries | arXiv:2601.15672v1 Announce Type: new Abstract: For more than half a century, the puzzling W-type phenomenon in contact binaries has challenged astrophysicists. In these systems, the less massive component exhibits a higher surface temperature than its more massive companion, which is a reversal of the typical A-type c... | https://arxiv.org/abs/2601.15672 | Academic Papers | svg |
fed3baafb0d0ca75e2a4e4975f170e4b0155bc03f7f279021854e16f1a1c5290 | 2026-01-23T00:00:00-05:00 | Development of an early warning method incorporating pre-supernova neutrino light curves | arXiv:2601.15691v1 Announce Type: new Abstract: Massive stars ($M>8\mathrm{M_\odot}$) emit neutrinos known as pre-supernova (pre-SN) neutrinos through thermal and nuclear interactions for cooling the stellar core during the final stage of stellar evolution. Real-time monitoring of their pre-SN neutrino interaction rate... | https://arxiv.org/abs/2601.15691 | Academic Papers | svg |
2cff9a0e913dda8c4b0797c3752728660d3065ef482e00b55bf7675626982ce7 | 2026-01-23T00:00:00-05:00 | Evidence for stellar contamination and water absorption in NGTS-5b's transmission spectra with GTC/OSIRIS | arXiv:2601.15704v1 Announce Type: new Abstract: Transmission spectroscopy serves as a valuable tool for probing atmospheric absorption features in the terminator regions of exoplanets. Stellar surface heterogeneity can introduce wavelength-dependent contamination that complicates the interpretation of planetary spectra... | https://arxiv.org/abs/2601.15704 | Academic Papers | svg |
8e15d8bb4298832c360c0527d898837726d4bdc4eea9988fbe3372a192ee4fec | 2026-01-23T00:00:00-05:00 | Hydrodynamic simulations of the recurrent nova T Coronae Borealis: Nucleosynthesis predictions | arXiv:2601.15713v1 Announce Type: new Abstract: T Coronae Borealis (T CrB) is one of the eleven known recurrent novae in our Galaxy. It was observed in outburst in 1866 and 1946, with additional likely eruptions recorded in 1217 and 1787. Given its predicted recurrence period of approximately 80 yr, the next outburst i... | https://arxiv.org/abs/2601.15713 | Academic Papers | svg |
07d5c4095e299bc39cd507bd1b8191f954b29010435c924b6d12f4ec608c9df3 | 2026-01-23T00:00:00-05:00 | Fuzzy dark matter soliton core hosting a supermassive black hole as a dense low-mass perturber in strong gravitational lensing | arXiv:2601.15718v1 Announce Type: new Abstract: Recent high-resolution imaging observations of strong lens systems reveal dense low-mass perturbers. We propose a soliton core, whose central density is boosted by a supermassive black hole (SMBH), in the fuzzy dark matter (FDM) model as an efficient perturber in strong g... | https://arxiv.org/abs/2601.15718 | Academic Papers | svg |
5836d16dd1f1b13e53f7f8d497a8fc880348de80c42d21bf7e68514be7889a1d | 2026-01-23T00:00:00-05:00 | Interaction between the ejecta, the accretion disk, and the secondary star in the recurrent nova system U Sco | arXiv:2601.15725v1 Announce Type: new Abstract: Most efforts in the modeling of recurrent novae have centered on the initial phases of the explosion and ejection, overlooking the subsequent interaction of the ejecta, first with the accretion disk orbiting the white dwarf and ultimately with the secondary star. To addre... | https://arxiv.org/abs/2601.15725 | Academic Papers | svg |
651afd5d53ea0d9f902d472599389e1ddcf9db172f90ca93739303ce8392e031 | 2026-01-23T00:00:00-05:00 | GRB~250704B/EP250704a a Short Gamma-Ray Burst Powered by a Magnetar | arXiv:2601.15732v1 Announce Type: new Abstract: GRB~250704B/EP250704a, identified as a short gamma-ray burst (sGRB), exhibited prolonged X-ray emission following the prompt phase and, in optical and infrared (IR) bands, an unusual one-day plateau succeeded by a rapid decline. This sGRB was observed by multiple satellit... | https://arxiv.org/abs/2601.15732 | Academic Papers | svg |
b84474ef4722743ccca31c3d7523077d3264cb963b9ab9dd5a47368d60283492 | 2026-01-23T00:00:00-05:00 | Nucleosynthesis in Type Ia Supernovae, Classical Novae, and Type I X-Ray Bursts. A Primer on Stellar Explosions | arXiv:2601.15740v1 Announce Type: new Abstract: Nuclear astrophysics aims at unraveling the cosmic origins of chemical elements and the physical processes powering stars. It constitutes a truly multidisciplinary field, that integrates tools, advancements, and accomplishments from theoretical astrophysics, observational... | https://arxiv.org/abs/2601.15740 | Academic Papers | svg |
e6c7e0ac8113cfb53c6f8ef892a2c92358faddeafc351677fc43dfc56012aa75 | 2026-01-23T00:00:00-05:00 | Redshift-Binned Constraints on the Hubble Constant under $\Lambda$CDM, CPL, and Pad\'e Cosmography | arXiv:2601.15765v1 Announce Type: new Abstract: Motivated by recent claims of a possible redshift dependence in late-Universe determinations of the Hubble constant ($H_0$), we test the robustness of this behaviour using multiple cosmological probes. We perform a joint redshift-binned analysis of $H_0$ across eight bins... | https://arxiv.org/abs/2601.15765 | Academic Papers | svg |
3431103524d4c743fc80cc0660b25e8d1157e69bfcf4ca0b11c54d69855899e1 | 2026-01-23T00:00:00-05:00 | Deuteration of HC3N and CH3CCH in the pre-stellar core L1544 | arXiv:2601.15791v1 Announce Type: new Abstract: Deuterated molecules are a useful diagnostic tool to probe the evolution and the kinematics in the earliest stages of star formation. Due to the low temperatures and high densities in the centre of pre-stellar cores, the deuterium fraction is enhanced by several orders of... | https://arxiv.org/abs/2601.15791 | Academic Papers | svg |
6411740069c1fddfd886e94c8ed246053964b527661fef858ff430b16d19a1db | 2026-01-23T00:00:00-05:00 | Failed ejection and oscillations of a current-carrying filament balanced by gravity | arXiv:2601.15823v1 Announce Type: new Abstract: In this study, we investigate the post-destabilization evolution of a filament in a gravity-balanced model. We adopt the filament model proposed by Solov'ev (2010), in which a dense filament is supported against gravity by the repulsive force between the filament current ... | https://arxiv.org/abs/2601.15823 | Academic Papers | svg |
01d98c2ba43e50a2b0a3311e00ecff5e496bed5e909992477ab4914277661c46 | 2026-01-23T00:00:00-05:00 | Radio-Interferometric Image Reconstruction with Denoising Diffusion Restoration Models | arXiv:2601.15844v1 Announce Type: new Abstract: Reconstructing images of the radio sky from incomplete Fourier information is a key challenge in radio astronomy. In this work, we present a method for radio interferometeic image reconstruction using a data-driven prior for the radio sky based on denoising diffusion prob... | https://arxiv.org/abs/2601.15844 | Academic Papers | svg |
07423fc3bc33bf7d54ee8760f527059e338bd41582a6a171eba0e7abdab65dd5 | 2026-01-23T00:00:00-05:00 | Intrinsic alignments in the FLAMINGO simulations with two-point statistics | arXiv:2601.15851v1 Announce Type: new Abstract: Intrinsic alignments are a major astrophysical contaminant for next generation large-sky surveys like Euclid and LSST. Large hydrodynamic simulations are crucial for informing the alignment modelling for these surveys. We measure position-position and position-shape corre... | https://arxiv.org/abs/2601.15851 | Academic Papers | svg |
31f249a6f5a5d3e68034cadee81f4fb60f16a62d2950dd1dbf91b25b84c488b7 | 2026-01-23T00:00:00-05:00 | Does the solar oxygen abundance change over the solar cycle? An investigation into activity-induced variations of the O I infrared triplet | arXiv:2601.15919v1 Announce Type: new Abstract: The determination of the solar oxygen abundance remains a central problem in astrophysics, as its accuracy is limited not only by models but also by systematics. While many of these factors have been thoroughly characterized, the effect of the solar activity cycle has so ... | https://arxiv.org/abs/2601.15919 | Academic Papers | svg |
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