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We study a large family of Riesz-type singular interaction potentials with anisotropy in two dimensions. Their associated global energy minimizers are given by explicit formulas whose supports are determined by ellipses under certain…

偏微分方程分析 · 数学 2022-09-28 José A. Carrillo , Ruiwen Shu

We develop and use some key concepts of potential theory, such as balayage and duality between measures and their potentials, to study the distribution of masses of subharmonic functions while restrictions to their growth near the boundary…

复变函数 · 数学 2020-02-11 Bulat N. Khabibullin , Enzhe B. Menshikova

We study measures and point configurations optimizing energies based on multivariate potentials. The emphasis is put on potentials defined by geometric characteristics of sets of points, which serve as multi-input generalizations of the…

经典分析与常微分方程 · 数学 2023-03-28 Dmitriy Bilyk , Damir Ferizović , Alexey Glazyrin , Ryan W. Matzke , Josiah Park , Oleksandr Vlasiuk

Let A be a compact set in the right-half plane and $\Gamma(A)$ the set in $\mathbb{R}^{3}$ obtained by rotating A about the vertical axis. We investigate the support of the limit distribution of minimal energy point charges on $\Gamma(A)$…

数学物理 · 物理学 2009-11-13 J. S. Brauchart , D. P. Hardin , E. B. Saff

We prove a large deviation principle for the sequence of push-forwards of empirical measures in the setting of Riesz potential interactions on compact subsets K in R^d with continuous external fields. Our results are valid for base measures…

经典分析与常微分方程 · 数学 2016-10-27 Tom Bloom , Norman Levenberg , Franck Wielonsky

Equilibrium mapping techniques for nonaligning self-propelled particles have made it possible to predict the density profile of an active ideal gas in a wide variety of external potentials, however they fail when the self-propulsion is very…

软凝聚态物质 · 物理学 2019-05-22 Yaouen Fily

The compressible Euler-Riesz equations are fundamental with wide applications in astrophysics, plasma physics, and mathematical biology. In this paper, we are concerned with the global existence and nonlinear stability of finite-energy…

偏微分方程分析 · 数学 2025-02-19 José A. Carrillo , Samuel R. Charles , Gui-Qiang G. Chen , Difan Yuan

We investigate and prove Lieb-Oxford bounds in one dimension by studying convex potentials that approximate the ill-defined Coulomb potential. A Lieb-Oxford inequality establishes a bound of the indirect interaction energy for electrons in…

数学物理 · 物理学 2020-07-15 Andre Laestadius , Fabian M Faulstich

We consider the minimal discrete and continuous energy problems on the unit sphere $\mathbb{S}^d$ in the Euclidean space $\mathbb{R}^{d+1}$ in the presence of an external field due to finitely many localized charge distributions on…

数学物理 · 物理学 2017-06-29 Johann S. Brauchart , Peter D. Dragnev , Edward B. Saff , Robert S. Womersley

We investigate the full counting statistics (FCS) of a harmonically confined 1d short-range Riesz gas consisting of $N$ particles in equilibrium at finite temperature. The particles interact with each other through a repulsive power-law…

We study $N$-particle systems in R^d whose interactions are governed by a hypersingular Riesz potential $|x-y|^{-s}$, $s>d$, and subject to an external field. We provide both macroscopic results as well as microscopic results in the limit…

数学物理 · 物理学 2017-11-09 Douglas P. Hardin , Thomas Leblé , Edward B. Saff , Sylvia Serfaty

We study the statistical mechanics of classical two-dimensional "Coulomb gases" with general potential and arbitrary \beta, the inverse of the temperature. Such ensembles also correspond to random matrix models in some particular cases. The…

数学物理 · 物理学 2013-03-18 Etienne Sandier , Sylvia Serfaty

This article deals with Coulomb gases at an intermediate temperature regime, in which no structure is observed at the microscopic level, but the mass in confined to a compact set. Our main result is a concentration inequality around the…

偏微分方程分析 · 数学 2022-04-13 David Padilla-Garza

We study the long-range one-dimensional Riesz gas on the circle, a continuous system of particles interacting through a Riesz kernel. We establish near-optimal rigidity estimates on gaps valid at any scale. Leveraging these local laws…

概率论 · 数学 2025-07-22 Jeanne Boursier

The ultra-relativistic Euler equations for an ideal gas are described in terms of the pressure $p$, the spatial part $\underline{u} \in \R^3$ of the dimensionless four-velocity and the particle density $n$. Radially symmetric solutions of…

数值分析 · 数学 2020-02-05 Matthias Kunik , Hailiang Liu , Gerald Warnecke

Equilibrium measures in the real axis in the presence of rational external fields are considered. These external fields are called rational since their derivatives are rational functions. We analyze the evolution of the equilibrium measure,…

经典分析与常微分方程 · 数学 2015-06-17 Ramón Orive , Joaquín Sánchez Lara

We consider a model for a gas of $N$ confined particles subject to a two-body repulsive interaction, namely the one-dimensional log or Riesz gas. We are interested in the so-called \textit{high temperature} regime, \textit{ie} where the…

概率论 · 数学 2025-07-21 Charlie Dworaczek Guera , Ronan Memin

We examine the dynamic spreading of a dense overdamped suspension of particles under power law repulsive potentials, often called Riesz gases. That is, potentials that decay with distance as 1/r^k where k\in (-2,\infty]. Depending on the…

软凝聚态物质 · 物理学 2025-01-13 Ido Fanto , Naomi Oppenheimer

We study the nonequilibrium properties of the one dimensional Lieb Liniger model in the finite repulsion regime. Introducing a new version of the Yudson representation applicable to finite size systems and appropriately taking the infinite…

量子气体 · 物理学 2014-05-19 Garry Goldstein , Natan Andrei

The goal of this paper is to develop some basic harmonic analysis tools for the Dirichlet Laplacian in the exterior domain associated to a smooth convex obstacle in dimensions $d\geq 3$. Specifically, we will discuss analogues of the…

偏微分方程分析 · 数学 2014-12-12 Rowan Killip , Monica Visan , Xiaoyi Zhang