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In order to understand how nonlocal diffusion and pulse intervention affect dynamics of species, we focus on an age-structured nonlocal diffusion model in moving and heterogeneous environment, where nonlocal diffusion describes the long…

偏微分方程分析 · 数学 2024-07-16 Haiyan Xu , Carlos Alberto Santos , Mengyun Zhang , Zhigui Lin

This paper develops an impulsive faecal-oral model with free boundary to in order to understand how the exposure to a periodic disinfection and expansion of the infected region together influences the spread of faecal-oral diseases. We…

偏微分方程分析 · 数学 2024-10-22 Qi Zhou , Zhigui Lin , Michael Pedersen

To study the influence of the moving front of the infected interval and the spatial movement of individuals on the spreading or vanishing of infectious disease, we consider a nonlocal SIS (susceptible-infected-susceptible)…

偏微分方程分析 · 数学 2023-01-31 Yachun Tong , Inkyung Ahn , Zhigui Lin

We consider an epidemic model with nonlocal diffusion and free boundaries, which describes the evolution of an infectious agents with nonlocal diffusion and the infected humans without diffusion, where humans get infected by the agents, and…

偏微分方程分析 · 数学 2019-12-06 Meng Zhao , Yang Zhang , Wan-Tong Li , Yihong Du

In this paper, we examine the long-time dynamics of an epidemic model whose diffusion and reaction terms involve nonlocal effects described by suitable convolution operators.The spreading front of the disease is represented by the free…

偏微分方程分析 · 数学 2022-03-01 Rong Wang , Yihong Du

This paper concerns the free boundary problem of an epidemic model. The spatial movements of the infectious agents and the infective humans are approximated by nonlocal diffusion operators. Especially, both the growth rate of the agents and…

偏微分方程分析 · 数学 2024-06-11 Xueping Li , Lei Li , Mingxin Wang

The goal of this work is to understand and quantify how a line with nonlocal diffusion given by an integral enhances a reaction-diffusion process occurring in the surrounding plane. This is part of a long term programme where we aim at…

偏微分方程分析 · 数学 2024-01-10 Henri Berestycki , Jean-Michel Roquejoffre , Luca Rossi

To understand how impulsive intervention and regional evolution jointly influence the spread of faecal-oral diseases, this paper develops an impulsive faecal-oral model in a periodically evolving environment. The well-posedness of the model…

偏微分方程分析 · 数学 2024-05-22 Qi Zhou , Zhigui Lin , Carlos Alberto Santos

The present paper is devoted to the investigation of the long time dynamics for a double free boundary system with nonlocal diffusions, which models the infectious diseases transmitted via digestive system such as fecal-oral diseases,…

动力系统 · 数学 2021-06-10 Thanh-Hieu Nguyen , Hoang-Hung Vo

An epidemic model, where the dispersal is approximated by nonlocal diffusion operator and spatial domain has one ?xed boundary and one free boundary, is considered in this paper. Firstly, using some elementary analysis instead of…

偏微分方程分析 · 数学 2024-05-08 Lei Li , Mingxin Wang

This paper studies an epidemic model with nonlocal dispersals. We focus on the influences of initial data and nonlocal dispersals on its spatial propagation. Here the initial data stand for the spatial concentrations of infectious agent and…

偏微分方程分析 · 数学 2020-07-31 Wen-Bing Xu , Wan-Tong Li , Shigui Ruan

This is the third part of our series of work devoted to the dynamics of an epidemic model with nonlocal diffusions and free boundary. This part is concerned with the rate of accelerated spreading for three types of kernel functions when…

偏微分方程分析 · 数学 2024-12-09 Lei Li , Mingxin Wang

This paper is concerned with the long-time dynamics of an epidemic model whose diffusion and reaction terms involve nonlocal effects described by suitable convolution operators, and the epidemic region is represented by an evolving interval…

偏微分方程分析 · 数学 2023-03-08 Yihong Du , Wenjie Ni , Rong Wang

We study a class of free boundary problems of ecological models with nonlocal and local diffusions, which are natural extensions of free boundary problems of reaction diffusion systems in there local diffusions are used to describe the…

偏微分方程分析 · 数学 2019-09-17 Jianping Wang , Mingxin Wang

Human behavioral responses play an important role in the impact of disease outbreaks and yet they are often overlooked in epidemiological models. Understanding to what extent behavioral changes determine the outcome of spreading epidemics…

物理与社会 · 物理学 2020-05-27 Benjamin Steinegger , Alex Arenas , Jesús Gómez-Gardeñes , Clara Granell

In this paper, we first consider two scalar nonlocal diffusion problems with a free boundary and a fixed boundary. We obtain the global existence, uniqueness and longtime behaviour of solution of these two problems. The spreading-vanishing…

偏微分方程分析 · 数学 2021-05-28 Lei Li , Mingxin Wang

This paper investigates the long-time dynamics of a nonlocal epidemic model with free boundaries, where a pathogen with density $u(t,x)$ and the infected humans with density $v(t,x)$ evolve according to a reaction-diffusion system with…

偏微分方程分析 · 数学 2026-02-06 Yao Chen , Yihong Du , Wan-Tong Li , Rong Wang

A reaction-diffusion model is investigated to understand infective environments in a man-environment-man epidemic model. The free boundary is introduced to describe the expanding front of an infective environment induced by fecally-orally…

偏微分方程分析 · 数学 2014-08-28 Inkyung Ahn , Zhigui Lin

In this paper, we proceed to study the nonlocal diffusion problem proposed by Li and Wang [8], where the left boundary is fixed, while the right boundary is a nonlocal free boundary. We first give some accurate estimates on the longtime…

偏微分方程分析 · 数学 2021-08-23 Lei Li , Mingxin Wang

A mutualist model with nonlocal diffusions and a free boundary is first considered. We prove that this problem has a unique solution defined $t\ge0$, and its dynamics are governed by a spreading-vanishing dichotomy. Some criteria for…

偏微分方程分析 · 数学 2021-10-28 Lei Li , Mingxin Wang
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