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We obtain a sharp quantitative isoperimetric inequality for nonlocal $s$-perimeters, uniform with respect to $s$ bounded away from $0$. This allows us to address local and global minimality properties of balls with respect to the…

偏微分方程分析 · 数学 2022-02-25 Alessio Figalli , Nicola Fusco , Francesco Maggi , Vincent Millot , Massimiliano Morini

We investigate low energy structures of a lattice with dislocations in the context of nonlinear elasticity. We show that these low energy configurations exhibit in the limit a Cosserat-like behavior. Moreover, we give bounds from above and…

数学物理 · 物理学 2017-03-10 Gianluca Lauteri , Stephan Luckhaus

We prove that that for nonlinear elastic energies with strong enough energetic control of the outer distortion of admissible deformations, almost everywhere global invertibility as constraint can be obtained in the $\Gamma$-limit of the…

偏微分方程分析 · 数学 2022-06-29 Stefan Krömer , Philipp Reiter

In this paper we consider shape optimisation problems for sets of prescribed mass, where the driving energy functional is nonlocal and anisotropic. More precisely, we deal with the case of attractive/repulsive interactions in two and three…

偏微分方程分析 · 数学 2024-01-29 Riccardo Cristoferi , Maria Giovanna Mora , Lucia Scardia

We consider the minimization of an energy functional given by the sum of a density perimeter and a nonlocal interaction of Riesz type with exponent $\alpha$, under volume constraint, where the strength of the nonlocal interaction is…

偏微分方程分析 · 数学 2020-10-16 Stan Alama , Lia Bronsard , Ihsan Topaloglu , Andres Zuniga

The surprising manifestation of collectivity in small collision systems, such as nucleon-nucleon and nucleon-nucleus collisions, is perhaps even more striking when discussed at higher momenta. In larger systems, high-$p_T$ elliptic…

高能物理 - 唯象学 · 物理学 2026-03-16 Erik Carrió , Daniel Pablos

This paper investigates the existence and qualitative properties of minimizers for a class of nonlocal micromagnetic energy functionals defined on bounded domains. The considered energy functional consists of a symmetric exchange…

偏微分方程分析 · 数学 2025-05-16 Giovanni Di Fratta , Rossella Giorgio , Luca Lombardini

We derive geometrically linearized theories for incompressible materials from nonlinear elasticity theory in the small displacement regime. Our nonlinear stored energy densities may vary on the same (small) length scale as the typical…

偏微分方程分析 · 数学 2020-04-24 Martin Jesenko , Bernd Schmidt

We study the effective behavior of heterogeneous energies arising in the modeling of material voids in geometrically linear elastic materials. Specifically, we consider functionals featuring bulk terms depending on the symmetrized gradient…

偏微分方程分析 · 数学 2026-02-20 Stefano Almi , Antonio Flavio Donnarumma , Manuel Friedrich

We examine the energy distribution in a three-dimensional model granular system contained in an open cylinder under the influence of gravity. Energy is supplied to the system by a vibrating base. We introduce spatially resolved, partial…

统计力学 · 物理学 2009-11-10 Peter E. Krouskop , Julian Talbot

We show that under particular circumstances a general relativistic spherically symmetric bounded distribution of matter could satisfy a nonlocal equation of state. This equation relates, at a given point, the components of the corresponding…

广义相对论与量子宇宙学 · 物理学 2011-07-19 H. Hernandez , L. A. Nunez , U. Percoco

For surfaces of revolution $B$ in $\R^3$, we investigate the limit distribution of minimum energy point masses on $B$ that interact according to the logarithmic potential $\log (1/r)$, where $r$ is the Euclidean distance between points. We…

数学物理 · 物理学 2015-06-26 D. P. Hardin , E. B. Saff , H. Stahl

We consider a constrained minimal energy problem with an external field over noncompact classes of infinite dimensional vector measures on a locally compact space. The components are positive measures (charges) that are constrained from…

经典分析与常微分方程 · 数学 2010-10-12 Natalia Zorii

Energy is at best defined quasilocally in general relativity. Quasilocal energy definitions depend on the conditions one imposes on the boundary Hamiltonian, i.e., how a finite region of spacetime is "isolated". Here, we propose a method to…

广义相对论与量子宇宙学 · 物理学 2016-10-19 Nezihe Uzun

An analysis of errors in measurement yields new insight into classically forbidden quantum processes. In addition to "physical" values, a realistic measurement can yield "unphysical" values; we show that in {\it sequences} of measurements,…

凝聚态物理 · 物理学 2009-10-22 Daniel Rohrlich , Yakir Aharonov , Sandu Popescu , Lev Vaidman

The paper establishes exact lower bound on the effective elastic energy of two-dimensional, three-material composite subjected to the homogeneous, anisotropic stress. It is assumed that the materials are mixed with given volume fractions…

数学物理 · 物理学 2014-01-29 Andrej Cherkaev , Grzegorz Dzierzanowski

We analyse two variants of a nonconvex variational model from micromagnetics with a nonlocal energy functional, depending on a small parameter $\epsilon > 0$. The model gives rise to transition layers, called N\'eel walls, and we study…

偏微分方程分析 · 数学 2020-07-13 Radu Ignat , Roger Moser

We study the singular perturbation of an elastic energy with a singular weight. The minimization of this energy results in a multi-scale pattern formation. We derive an energy scaling law in terms of the perturbation parameter and prove…

偏微分方程分析 · 数学 2020-03-18 Oleksandr Misiats , Ihsan Topaloglu , Daniel Vasiliu

We establish a Harnack inequality for weak solutions of nonlocal equations in a disconnected region. The inequality compares the value of a solution on one connected component with its value on another, capturing a purely nonlocal…

偏微分方程分析 · 数学 2025-08-25 Se-Chan Lee

In the context of the Minimal Geometric Deformation method, in this paper we implement the inverse problem in a black hole scenario. In order to deal with an anisotropic polytropic black hole solution of the Einstein field equations with…

广义相对论与量子宇宙学 · 物理学 2018-12-04 Ernesto Contreras , Pedro Bargueño