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相关论文: Regularity of Solutions for Peridynamics Equilibri…

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Explicit representations of the eigenvalues of the peridynamic operator have been recently derived in [5]. These representations are given in terms of generalized hypergeometric functions. Asymptotic analysis of the hypergeometric functions…

数学物理 · 物理学 2023-08-21 Bacim Alali , Nathan Albin , Thinh Dang

This work addresses the regularity of solutions for a nonlocal diffusion equation over the space of periodic distributions. The spatial operator for the nonlocal diffusion equation is given by a nonlocal Laplace operator with a compactly…

偏微分方程分析 · 数学 2022-10-04 Ilyas Mustapha , Bacim Alali , Nathan Albin

This work addresses the regularity of solutions for a nonlocal wave equation over the space of periodic distributions. The spatial operator for the nonlocal wave equation is given by a nonlocal Laplace operator with a compactly supported…

偏微分方程分析 · 数学 2024-08-05 Thinh Dang , Bacim Alali , Nathan Albin

In this work, we study the Dirichlet problem associated with a strongly coupled system of nonlocal equations. The system of equations comes from a linearization of a model of peridynamics, a nonlocal model of elasticity. It is a nonlocal…

偏微分方程分析 · 数学 2018-05-24 Moritz Kassmann , Tadele Mengesha , James Scott

In this paper we investigate, through numerical studies, the dynamical evolutions encoded in a linear one-dimensional nonlocal equation arising in peridynamcs. The different propagation regimes ranging from the hyperbolic to the dispersive,…

The paper presents a collection of results on continuous dependence for solutions to nonlocal problems under perturbations of data and system parameters. The integral operators appearing in the systems capture interactions via heterogeneous…

偏微分方程分析 · 数学 2021-09-14 Nicole Buczkowski , Mikil Foss , Michael Parks , Petronela Radu

The nonlocal models of peridynamics have successfully predicted fractures and deformations for a variety of materials. In contrast to local mechanics, peridynamic boundary conditions must be defined on a finite volume region outside the…

偏微分方程分析 · 数学 2021-06-29 Mikil Foss , Petronela Radu , Yue Yu

Properties of solutions of generic hyperbolic systems with multiple characteristics with diagonalizable principal part are investigated. Solutions are represented as a Picard series with terms in the form of iterated Fourier integral…

偏微分方程分析 · 数学 2008-02-05 Ilia Kamotski , Michael Ruzhansky

We consider linear and obstacle problems driven by a nonlocal integral operator, for which nonlocal interactions are restricted to a ball of finite radius. These type of operators are used to model anomalous diffusion and, for a special…

数值分析 · 数学 2018-04-30 Olena Burkovska , Max Gunzburger

Nonlocal gradient operators are basic elements of nonlocal vector calculus that play important roles in nonlocal modeling and analysis. In this work, we extend earlier analysis on nonlocal gradient operators. In particular, we study a…

计算物理 · 物理学 2017-10-17 Qiang Du , Xiaochuan Tian

The paper deals with homogenization and higher order approximations of solutions to nonlocal evolution equations of convolution type whose coefficients are periodic in the spatial variables and random stationary in time. We assume that the…

偏微分方程分析 · 数学 2026-02-11 Marina Kleptsyna , Andrey Piatnitski , Alexandre Popier

We study weak solutions to nonlocal equations governed by integrodifferential operators. Solutions are defined with the help of symmetric nonlocal bilinear forms. Throughout this work, our main emphasis is on operators with general,…

偏微分方程分析 · 数学 2020-03-25 Bartlomiej Dyda , Moritz Kassmann

In this work, we address a parabolic problem featuring a potentially doubly nonlinear term, governed by a combination of local and nonlocal operators (see Problem P1 below). We first establish the local existence of weak energy solutions…

偏微分方程分析 · 数学 2026-04-07 Abdelhamid Gouasmia , Hichem Hajaiej , Kaushik Bal

We study nonlocal equations from the area of peridynamics on bounded domains. In our companion paper, we discover that, on $\mathbb{R}^n$, the governing operator in peridynamics, which involves a convolution, is a bounded function of the…

数学物理 · 物理学 2014-11-13 Burak Aksoylu , Horst Reinhard Beyer , Fatih Celiker

We discuss the issue of maximal regularity for evolutionary equations with non-autonomous coefficients. Here evolutionary equations are abstract partial-differential algebraic equations considered in Hilbert spaces. The catch is to consider…

偏微分方程分析 · 数学 2020-07-01 Sascha Trostorff , Marcus Waurick

We investigate the regularity of local weak solutions to evolution equations of the form \[…

偏微分方程分析 · 数学 2026-04-23 Pasquale Ambrosio , Simone Ciani , Giovanni Cupini

This paper investigates the existence, uniqueness, and regularity of solutions to evolution equations with time-measurable pseudo-differential operators in weighted mixed-norm Sobolev-Lipschitz spaces. We also explore trace embedding and…

偏微分方程分析 · 数学 2024-12-17 Jae-Hwan Choi

The convergence of a peridynamic model for solid mechanics inside heterogeneous media in the limit of vanishing nonlocality is analyzed. It is shown that the operator of linear peridynamics for an isotropic heterogeneous medium converges to…

偏微分方程分析 · 数学 2014-11-27 Bacim Alali , Max Gunzburger

We study the regularity for solutions of fully nonlinear integro differential equations with respect to nonsymmetric kernels. More precisely, we assume that our operator is elliptic with respect to a family of integro differential linear…

偏微分方程分析 · 数学 2012-06-28 Hector Chang Lara , Gonzalo Davila

The nonlocal Cahn-Hilliard equation provides a natural extension of the classical model for phase separation by incorporating long-range interactions through a singular convolution kernel. While this formulation admits a rich existence and…

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