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Mathematics Preprint PDF DOI

Stationary Distribution of Brownian Motion in the Half-Plane with Two-sided Reflections

Jules Flin · 2026

We investigate the unique stationary measure of a positive recurrent reflecting Brownian motion in the upper half-plane, where the direction of reflection is constant on each half-axis. The Laplace tr…

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Physics Preprint PDF DOI

Regular ultracompact objects with anti-de Sitter cores as polymerized vacuum solutions

Hongguang Liu, Ioannis Soranidis · 2026

We present a systematic derivation of regular black hole solutions - and their horizonless counterparts - that achieve regularization via an anti-de Sitter core. These geometries emerge as polymerized…

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Physics Preprint PDF DOI

Cosmological Observational Tests in the JWST Era. II: The Tolman Test

V. V. Tsymbal, A. A. Raikov, N. Yu. Lovyagin · 2026

In this work, we investigate a classical cosmological test - the dependence of galaxy surface brightness on redshift z (the Tolman test). We analyzed 6 860 galaxies with reliably determined spectrosco…

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Physics Preprint PDF DOI

Spin-coherence characterization of boron vacancy defects in hexagonal boron nitride with broadband microwave pulses

Yuki Nakamura, Takuya Iwasaki, Shu Nakaharai, Shinichi Ogawa, Yukinori Morita, Kenji Watanabe, Takashi Taniguchi, Kento Sasaki, Kensuke Kobayashi · 2026

Negatively charged boron vacancy (VB-) defects in hexagonal boron nitride (hBN) are promising for nanoscale-proximity quantum sensing. To evaluate their performance, it is important to characterize th…

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Mathematics Preprint PDF DOI

Extension of Excess Demand Ascending Auction to Multi-Demand Model by Discrete Convex Analysis Approach

Kazuo Murota, Akiyoshi Shioura · 2026

We consider the problem of finding the (unique) minimal Walrasian equilibrium price in multi-item, multi-unit auction models: there are multiple indivisible items for sale, with several units of each …

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Computer Science Preprint PDF DOI

Temporal Routing in Static Networks: The Schedule Completion Problem

Michelle Doring, Niklas Mohrin, George Skretas · 2026

We introduce the TemporallyEdgeDisjointScheduleCompletion (TEDSC) problem in which we need to cover a set of temporal edge demands $D$ by routing $k$ temporal walks through a directed static graph whi…

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Mathematics Preprint PDF DOI

Jump It\^o-type formula with arbitrary regularity

Nannan Li, Xing Gao · 2026

We establish an It\^o-type formula for finite $p$-variation paths with jumps for arbitrary $p\geq 1$. The formula is stated in a fully pathwise form and separates the reduced rough integral from expli…

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Physics Preprint PDF DOI

Numerical inverse scattering transform for the coupled modified Korteweg-de Vries equation

Wen-Xin Zhang, Yong Chen · 2026

This paper develops the numerical inverse scattering transform (NIST) framework for the coupled modified Korteweg-de Vries (mKdV) equation based on its associated Riemann-Hilbert problem. The coupled …

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Mathematics Preprint PDF DOI

Holomorphic Jet Modules and Holomorphic Connections for Noncommutative Complex Curves

Indranil Biswas, Satyajit Guin, Pradip Kumar · 2026

We extend Atiyah's holomorphic jet bundle formalism to holomorphic vector bundles over noncommutative algebras endowed with a bigraded differential calculus truncated at bidegree $(1,1)$; we refer to …

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Mathematics Preprint PDF DOI

Convex Hull Volumes in Hyperbolic 3-Space

Cameron MacMahon · 2026

In this paper we provide a geometric condition satisfied by certain closed subsets of the Riemann sphere which implies that their hyperbolic convex hulls in $\mathbb{H}^3$ have infinite volume. As a c…

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Mathematics Preprint PDF DOI

On the monotonicity of affine quermassintegrals

Shibing Chen, Yuanyuan Li, Xianduo Wang · 2026

Lutwak's affine quermassintegral theory is a foundational component of modern affine Brunn--Minkowski theory. Developed in the 1980s, it provides affine analogues of the classical quermassintegrals an…

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Computer Science Preprint PDF DOI

What Is the Cost of Energy Monitoring? An Empirical Study on the Overhead of RAPL-Based Tools

Jeremy Diamond, Vincenzo Stoico · 2026

The Running Average Power Limit (RAPL) interface is widely used to estimate software energy consumption via CPU and DRAM counters, but tool design differences and high-frequency polling can introduce …

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Physics Preprint PDF DOI

Conditional diffusion denoising probabilistic model for super-resolution of atmospheric boundary layer large eddy simulation

Omar Sallam, Mirjam Furth · 2026

Climate change necessitates rapid expansion of renewable energy, with wind energy offering a scalable and low-impact solution. However, accurate prediction of wind loads and power generation remains c…

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Physics Preprint PDF DOI

The Hawking Singularity Theorem for H\"older Continuous Metrics with $L^p$-Bounded Curvature

Michael Kunzinger, Moritz Reintjes, Roland Steinbauer, Ines Vega-Gonzalez · 2026

We prove a low-regularity version of Hawking's singularity theorem for Lorentzian metrics in $W^{1,p}$ with Riemann curvature in $L^p$, where $p>2n$ and $n$ the dimension of spacetime. This extends pr…

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Mathematics Preprint PDF DOI

The Riemann integral on Dedekind complete $f$-algebras

Eder Kikianty, Luan Naude, Mark Roelands, Christopher Schwanke · 2026

In this paper we develop a theory of integration for locally band preserving functions, introduced by Ercan and Wickstead, on Dedekind complete $f$-algebras. Specifically, we construct Darboux and Rie…

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Physics Preprint PDF DOI

Addressable Rydberg excitation in arrays of single neutral atoms with a strongly focused flat-top beam

I. V. Iukhnovets, M. Y. Goloshchapov, A. P. Gordeev, O. V. Bychkova, I. B. Bobrov, G. I. Struchalin, S. S. Straupe · 2026

We present a method for generating a laser beam with flat intensity and phase profiles in the focal region where the beam interacts with neutral $^{87}$Rb atoms in an array of optical dipole traps. We…

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Computer Science Preprint PDF DOI

Diffusion Reconstruction towards Generalizable Audio Deepfake Detection

Bo Cheng, Songjun Cao, Xiaoming Zhang, Jie Chen, Long Ma, Fei Chen · 2026

Achieving robust generalization against unseen attacks remains a challenge in Audio Deepfake Detection (ADD), driven by the rapid evolution of generative models. To address this, we propose a framewor…

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Mathematics Preprint PDF DOI

Drift-Free Conservative Dynamics from Quantized Interaction Rules

Park Junhu, Youngsoo Ha, Myungjoo Kang · 2026

Conservation laws are conventionally discretized through floating-point flux evaluation, with invariants obtained by cancellation of approximate interface contributions and admissible weak solutions s…

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Mathematics Preprint PDF DOI

Smallest distances between zeros of Gaussian analytic functions

Renjie Feng, Dong Yao · 2026

In this article, we study the smallest distances between the zeros of Gaussian analytic functions over compact Riemann surfaces. Our main result is that, after appropriate rescaling, the point process…

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Mathematics Preprint PDF DOI

Flexibility of eigenvalues for graph Laplacians arising from genus 3 surfaces

Alena Erchenko, Dmitry Jakobson, Allison Tsypin · 2026

It is known that the small eigenvalues of the Laplacian of a Riemann surface close to the boundary of the modular space can be well approximated by the eigenvalues of the discrete Laplacian on a certa…

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