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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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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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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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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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Mathematics Preprint PDF DOI

A criterion for parabolic vector bundles to admit a parabolic Lie algebroid connection

David Alfaya, Ashima Bansal, Indranil Biswas, Anoop Singh · 2026

Given a holomorphic Lie algebroid $(V, \phi)$ on a compact connected Riemann surface $X$, we give a necessary and sufficient condition for a parabolic vector bundle on $X$, with parabolic structure ov…

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Physics Preprint PDF DOI

Quantum Flat Connections, KZ equations, and Integrability

Sibasish Banerjee, Babak Haghighat, Anouchah Latifi · 2026

N=2 supyersymmetric Yang-Mills theories are described in terms of a Hitchin system over a Riemann surface C. Focusing on strongly coupled Argyres-Douglas theories, we show that the corresponding flat …

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Physics Preprint PDF DOI

Long-time asymptotics of the Newell equation on the line

Deng-Shan Wang, Yingmin Yang · 2026

In 1978, A. C. Newell [SIAM J. Appl. Math. 35(4) (1978) 650-664] proposed an exactly solvable model called Newell equation, which simulates the investigation of significant interaction mechanism betwe…

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Mathematics Preprint PDF DOI

Conditional Upper Bounds for Large Deviations and Moments of the Riemann Zeta Function

Louis-Pierre Arguin, Emma Bailey, Asher Roberts · 2026

Assuming the Riemann Hypothesis, we show that for $k>0$ $$ \frac{1}{T}\text{meas}\Big\{t\in [T,2T]:|\zeta(1/2+{\rm i} t)|>(\log T)^k\Big\}\leq C_k \frac{(\log T)^{-k^2}}{\sqrt{\log\log T}}, $$ where $…

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Physics Preprint PDF DOI

Integrand Analysis, Leading Singularities and Canonical Bases beyond Polylogarithms

Felix Forner, Cesare Carlo Mella, Christoph Nega, Lorenzo Tancredi, Fabian J. Wagner · 2026

In this paper, we elaborate on the connection between leading singularities and canonical bases of Feynman integrals beyond polylogarithms. We start by discussing a notion of leading singularities in …

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Physics Preprint PDF DOI

Lie symmetry classification and invariant solutions of time-fractional telegraph systems with variable coefficients

Sodbaatar Adiya, Khongorzul Dorjgotov, Bayarmagnai Gombodorj, Bayarpurev Mongol, Uuganbayar Zunderiya · 2026

Time-fractional telegraph equations provide fundamental mathematical models for transport processes that exhibit memory and nonlocal effects in industrial and physical systems. These models arise natu…

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Mathematics Preprint PDF DOI

Newman's Tauberian theorem, the Riemann-Lebesgue Lemma, and abstract analytic number theory

Jan-Christoph Schlage-Puchta, Christoph Schwerdt · 2026

We give a generalized and effective version of Bekehermes' improvement of Newman's Tauberian theorem. To do so we prove an effective version of the Riemann-Lebesgue Lemma for functions of bounded $p$-…

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Mathematics Preprint PDF DOI

The moduli space of Higgs pairs

Jun Sasaki · 2026

In this paper, we study the moduli space of Higgs pairs, which can be considered as a generalization of holomorphic pairs. Higgs pairs are an example of quiver bundles. We introduce the notion of $\ta…

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Mathematics Preprint PDF DOI

Malliavin calculus and densities for chaos-driven stochastic differential equations

Laurent Loosveldt, Yassine Nachit, Ivan Nourdin · 2026

We study stochastic differential equations driven by finite-order chaos processes on abstract Wiener spaces, with pathwise Riemann-Stieltjes integration. The driving noise is an $\mathbb{R}^m$-valued …

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Physics Preprint PDF DOI

Regularization of Divergent Power Sums via Fractional Extension of Differential Generators

Eric A. Galapon · 2026

We reconsider the problem of regularizing the divergent series $\sum_{n=1}^{\infty}n^{\alpha}$ for $\operatorname{Re}\alpha>-1$, and offer a regularization prescription that yields the Riemann zeta re…

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