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Mathematics Preprint PDF DOI

The $H$-linkage problems in sparse robustly expanding digraphs

Zhilan Wang, Jin Yan ยท 2026

The Nash-Williams conjecture establishes degree sequence conditions ensuring Hamilton cycles in digraphs. An asymptotic version of this conjecture for large digraphs was independently derived by severโ€ฆ

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AI & Data Science Preprint PDF DOI

AG-TAL: Anatomically-Guided Topology-Aware Loss for Multiclass Segmentation of the Circle of Willis Using Large-Scale Multi-Center Datasets

Jialu Liu, Yue Cui, Shan Yu ยท 2026

Accurate multiclass segmentation of the Circle of Willis (CoW) is essential for neurovascular disease management but remains challenging due to complex vascular topology and variable morphology. Existโ€ฆ

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Physics Preprint PDF DOI

All-organic self-separating three-dimensionally nanoarchitected electrochemical energy storage devices

William R. T. Tait, Sriram Murali, Chao-Hua Hsu, Jantakan Nedsaengtip, Christina Lee, R. Paxton Thedford, Vibha Kalra, Joerg G. Werner, Ulrich B. Wiesner ยท 2026

This work realizes a three-dimensionally (3D) nanoarchitected, all organic, "self-separating" lithium-ion electrochemical energy storage (EES) device that is cycled as a solid-state full cell. The devโ€ฆ

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Physics Preprint PDF DOI

Bragg-Williams order competes with superconductivity

Xu Liu, Xu Chen, Chuizhen Chen, Boqin Song, Jing Chen, Xijing Dai, Qinghua Zhang, Feng Jin, Xingya Wang, Weiwei Dong, Dongliang Yang, Gefei Li, Pengju Zhang, Jiangping Hu, Jian-gang Guo, Tianping Ying, Xiaolong Chen ยท 2026

Orderings in charge and spin have been extensively studied to unravel their correlation to emergent superconductivity over the past decades. Bragg-Williams order (BWO), a classical structural order paโ€ฆ

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Mathematics Preprint PDF DOI

Semistable reductions and minimalities of invariants for group scheme actions on projective schemes

Rin Gotou, Yusuke Okuyama ยท 2026

Let $K$ be an algebraically closed and complete non-archimedean and non-trivially valued field, and let $G$ be a reductive group scheme acting on a flat projective scheme $X$ defined over the base rinโ€ฆ

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Mathematics Preprint PDF DOI

Triangle packings in randomly perturbed graphs

Xinbu Cheng, Hong Liu, Lanchao Wang, Zhifei Yan ยท 2026

The longstanding Nash-Williams conjecture asserts that every $K_3$-divisible graph $G$ with $\delta(G)\ge 3n/4$ admits a triangle decomposition. In the random setting, Frankl and R\"odl showed that, wโ€ฆ

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Mathematics Preprint PDF DOI

Calculating the second rational cohomology group of the Torelli group

Andrew Putman ยท 2026

Minahan and the author recently proved results that allow the calculation of the second rational cohomology group of the Torelli group. This builds on two key ingredients: Hain's calculation of the imโ€ฆ

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Computer Science Preprint PDF DOI

Constructive Separations from Gate Elimination

Marco Carmosino, Ngu Dang, Tim Jackman ยท 2026

Gate elimination is the primary technique for proving explicit lower bounds against general Boolean circuits, including Li and Yang's state-of-the-art $3.1n - o(n)$ bound for affine dispersers (STOC 2โ€ฆ

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Physics Preprint PDF DOI

Matched asymptotics of Rayleigh-wave fields near cuspidal ridges and gorges

Oleg Kiselev ยท 2026

We construct a local matched-asymptotic description of time-harmonic elastic fields generated by Rayleigh waves near cuspidal elements of a traction-free surface. The free surface is represented localโ€ฆ

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Mathematics Preprint PDF DOI

Maximum Cuts and Fractional Cut Covers: A Computational Study of a Randomized Semidefinite Programming Approach

Nathan Benedetto Proenca, Marcel K. de Carli Silva, Cristiane M. Sato, Levent Tuncel ยท 2026

We present experimental work on a primal-dual framework simultaneously approximating maximum cut and weighted fractional cut-covering instances. In this primal-dual framework, we solve a semidefinite โ€ฆ

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Mathematics Preprint PDF DOI

Soergel calculus for monodromic Hecke categories

Colton Sandvik ยท 2026

We introduce two 2-categories which categorify the monodromic Hecke algebra. The first is algebraic in nature and generalizes Abe's theory of Soergel bimodules. The second is a diagrammatic category dโ€ฆ

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Physics Preprint PDF DOI

Static heterogeneity generates apparent universality in first-passage bursty dynamics

Morten M{o}ller, Philipp Rahe, Sadegh Ghaderzadeh, Elena Besley, Philip Moriarty ยท 2026

Processes involving bursts of activity separated by quiescent periods occur across diverse systems and scales. In human dynamics, these phenomena have been described by power-law inter-event time distโ€ฆ

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Earth & Environmental Sciences Preprint PDF DOI

A Fast and Physically Grounded Ocean Model for GCMs: The Dynamical Slab Ocean Model of the Generic-PCM (rev. 3423)

Siddharth Bhatnagar, Francis Codron, Ehouarn Millour, Emeline Bolmont, Maura Brunetti, Jerome Kasparian, Martin Turbet, Guillaume Chaverot ยท 2026

Ocean dynamics are often sidelined in exoplanet climate studies due to the high computational cost of fully coupled atmosphere-ocean general circulation models (GCMs). However, ocean heat transport (Oโ€ฆ

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Computer Science Preprint PDF DOI

Max Cut with Small-Dimensional SDP Solutions

Hsien-Chih Chang, Suprovat Ghoshal, Euiwoong Lee ยท 2026

We study the Max-Cut semidefinite programming (SDP) relaxation in the regime where a near-optimal solution admits a low-dimensional realization. While the Goemans--Williamson hyperplane rounding achieโ€ฆ

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Computer Science Preprint PDF DOI

Conflict-Aware Robust Design for Covert Wireless Communications

Abbas Arghavani ยท 2026

Covert wireless communication aims to establish a reliable link while hiding the transmission from an adversary. In wireless settings, uncertainty plays a central role in this tradeoff: it can help maโ€ฆ

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Physics Preprint PDF DOI

Effect of Indium doping on structural and thermoelec-tric properties of SnTe

Diptasikha Das, A. Jana, S. Mahakal, Pallabi Sardar, J. Seal, Shamima Hussain, Kartick Malik ยท 2026

The solid state reaction method is employed to synthesize Sn1-xInxTe samples. Power Factors of synthesized samples are estimated from resistivity and thermopower data. Modifications in structural paraโ€ฆ

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Mathematics Preprint PDF DOI

Convergence Analysis of the Hessian Discretisation Method for Fourth Order Semi-linear Elliptic Equations with General Source

Devika Shylaja ยท 2026

This paper presents a convergence analysis for the Hessian Discretisation Method (HDM) applied to fourth-order semilinear elliptic equations involving a trilinear nonlinearity and general source, baseโ€ฆ

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Mathematics Preprint PDF DOI

On the Sum of Squares of Irreducible Brauer Character Degrees in Blocks

Hanxiao Li, Kun Zhang ยท 2026

We study a weakened version of the Holm--Willems Local Conjecture. The problem is reduced to quasi-simple groups under the assumption that the defect group is abelian. Complete proofs are provided in โ€ฆ

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Computer Science Preprint PDF DOI

On the Approximability of Max-Cut on 3-Colorable Graphs and Graphs with Large Independent Sets

Suprovat Ghoshal, Neng Huang, Euiwoong Lee, Konstantin Makarychev, Yury Makarychev ยท 2026

Max-Cut is a classical graph-partitioning problem where given a graph $G = (V,E)$, the objective is to find a cut $(S,S^c)$ which maximizes the number of edges crossing the cut. In a seminal work, Goeโ€ฆ

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Physics Preprint PDF DOI

William A. Bardeen -- A Brief Biography

Christopher T. Hill ยท 2026

William Allan Bardeen (September 15, 1941 $-$ November 18, 2025) was an American theoretical physicist who worked at the Fermi National Accelerator Laboratory. He is renowned for his foundational workโ€ฆ

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