English
Related papers

Related papers: Nonlocal dispersal equations with almost periodic …

200 papers

This series of two papers is devoted to the study of the principal spectral theory of nonlocal dispersal operators with almost periodic dependence and the study of the asymptotic dynamics of nonlinear nonlocal dispersal equations with…

Analysis of PDEs · Mathematics 2022-05-31 Maria Amarakristi Onyido , Wenxian Shen

This paper is to investigate the dependence of the principal spectrum points of nonlocal dispersal operators on underlying parameters and to consider its applications. In particular, we study the effects of the spatial inhomogeneity, the…

Dynamical Systems · Mathematics 2013-09-19 Wenxian Shen , Xiaoxia Xie

In this paper, we study the spectral theory for nonlocal dispersal operators with time periodic indefinite weight functions subject to Dirichlet type, Neumann type and spatial periodic type boundary conditions. We first obtain necessary and…

Dynamical Systems · Mathematics 2016-03-01 Wenxian Shen , Xiaoxia Xie

This paper investigates the principal spectral theory and the asymptotic behavior of the principal spectrum point for a class of time-periodic cooperative systems with nonlocal dispersal operators, incorporating both coupled and uncoupled…

Analysis of PDEs · Mathematics 2026-02-11 Hao Wu , Wan-Tong Li , Jian-Wen Sun , Hoang-Hung Vo

The purpose of this paper is to investigate the principal spectral theory and asymptotic behavior of the spectral bound for cooperative nonlocal dispersal systems, specifically focusing on the case where partial diffusion coefficients are…

Classical Analysis and ODEs · Mathematics 2024-09-26 Lei Zhang

In this communication, we prove some important limits of the principal eigenvalue for nonlocal operator of Neumann type with respect to the parameters, which are significant in the understanding of dynamics of biological populations. We…

Spectral Theory · Mathematics 2019-11-15 Hoang-Hung Vo

This paper is devoted to the investigation of the following nonlocal dispersal equation $$ u_{t}(t,x)=\frac{D}{\sigma^m}\left[\int_{\Omega}J_\sigma(x-y)u(t,y)dy-u(t,x)\right]+f(t,x,u(t,x)), \quad t>0,\quad x\in\overline{\Omega}, $$ where…

Analysis of PDEs · Mathematics 2017-04-04 Hoang-Hung Vo , Zhongwei Shen

This paper is mainly concerned with the generalised principal eigenvalue for time-periodic nonlocal dispersal operators. We first establish the equivalence between two different characterisations of the generalised principal eigenvalue. We…

Analysis of PDEs · Mathematics 2019-11-21 Yuan-Hang Su , Wan-Tong Li , Yuan Lou , Fei-Ying Yang

This paper is concerned with the approximations of random dispersal operators/equations by nonlocal dispersal operators/equations. It first proves that the solutions of properly rescaled nonlocal dispersal initial-boundary value problems…

Dynamical Systems · Mathematics 2015-05-21 Wenxian Shen , Xiaoxia Xie

Age-structured models with nonlocal diffusion arise naturally in describing the population dynamics of biological species and the transmission dynamics of infectious diseases in which individuals disperse nonlocally and interact each other…

Analysis of PDEs · Mathematics 2022-05-20 Arnaud Ducrot , Hao Kang , Shigui Ruan

This paper studies the effects of the dispersal spread, which characterizes the dispersal range, on nonlocal diffusion equations with the nonlocal dispersal operator $\frac{1}{\sigma^{m}}\int_{\Omega}J_{\sigma}(x-y)(u(y,t)-u(x,t))dy$ and…

Analysis of PDEs · Mathematics 2019-12-17 Yuan-Hang Su , Wan-Tong Li , Fei-Ying Yang

We investigate the effect of small diffusion on the principal eigenvalues of linear time-periodic parabolic operators with zero Neumann boundary conditions in one dimensional space. The asymptotic behaviors of the principal eigenvalues, as…

Analysis of PDEs · Mathematics 2021-01-13 Shuang Liu , Yuan Lou , Rui Peng , Maolin Zhou

The aim of this paper is to provide a comprehensive study of some linear nonlocal diffusion problems in metric measure spaces. These include, for example, open subsets in $\mathbb{R}^N$, graphs, manifolds, multi-structures or some fractal…

Analysis of PDEs · Mathematics 2014-12-18 Aníbal Rodríguez-Bernal , Silvia Sastre-Gómez

We study the spectra for a class of differential operators with asymptotically constant coefficients.These operators widely arise as the linearizations of nonlinear partial differential equations about patterns or nonlinear waves. We…

Analysis of PDEs · Mathematics 2023-05-11 Shuang Chen , Jinqiao Duan

The current paper {establishes} criteria for the existence of principal eigenvalues of time periodic cooperative linear nonlocal dispersal systems with Direchlet type, Neumann type or periodic type boundary conditions. It is shown that such…

Analysis of PDEs · Mathematics 2016-06-20 Xiongxiong Bao , Wenxian Shen

Linear nonautonomous/random parabolic partial differential equations are considered under the Dirichlet, Neumann or Robin boundary conditions, where both the zero order coefficients in the equation and the coefficients in the boundary…

Analysis of PDEs · Mathematics 2017-08-23 Janusz Mierczyński , Wenxian Shen

This work examines the limits of the principal spectrum point, $\lambda_p$, of a nonlocal dispersal cooperative system with respect to the dispersal rates. In particular, we provide precise information on the sign of $\lambda_p$ as one of…

Analysis of PDEs · Mathematics 2024-01-11 Maria A. Onyido , Rachidi B. Salako , Markjoe O. Uba , Cyril I. Udeani

We propose a class of nonlocal diffusion systems on time-varying domains, and fully characterize their asymptotic dynamics in the asymptotically fixed, time-periodic and unbounded cases. The kernel is not necessarily symmetric or compactly…

Analysis of PDEs · Mathematics 2025-02-11 Xiandong Lin , Hailong Ye , Xiao-Qiang Zhao

It is shown that the asymptotic spectra of finite-time Lyapunov exponents of a variety of fully chaotic dynamical systems can be understood in terms of a statistical analysis. Using random matrix theory we derive numerical and in particular…

Chaotic Dynamics · Physics 2009-10-31 Fotis Diakonos , Detlef Pingel , Peter Schmelcher

Nonlocal periodic operators in partial differential equations (PDEs) pose challenges in constructing neural network solutions, which typically lack periodic boundary conditions. In this paper, we introduce a novel PDE perspective on…

Numerical Analysis · Mathematics 2024-11-20 Elie Abdo , Ruimeng Hu , Quyuan Lin
‹ Prev 1 2 3 10 Next ›