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In this paper we consider a nonlocal viscous Burgers equation and study the well-posedness and asymptotic behaviour of its solutions. We prove that under the smallness assumption on the initial data the solutions behave as the self similar…

偏微分方程分析 · 数学 2016-10-13 Liviu Ignat , Tatiana Ignat

In these lecture notes, we address the problem of large-time asymptotic behaviour of the solutions to scalar convection-diffusion equations set in ${R}^N$. The large-time asymptotic behaviour of the solutions to many convection-diffusion…

偏微分方程分析 · 数学 2020-03-27 Enrique Zuazua

In this paper we consider a subcritical model that involves nonlocal diffusion and a classical convective term. In spite of the nonlocal diffusion, we obtain an Oleinik type estimate similar to the case when the diffusion is local. First we…

偏微分方程分析 · 数学 2016-10-13 C. Cazacu , L. Ignat , A. Pazoto

In this paper, the long-time asymptotic behaviours of nonlocal porous medium equations with absorption or convection are studied. In the parameter regimes when the nonlocal diffusion is dominant, the entropy method is adapted in this…

偏微分方程分析 · 数学 2023-11-08 Filomena Feo , Yanghong Huang , Bruno Volzone

In this paper we analyse the asymptotic behaviour of some nonlocal diffusion problems with local reaction term in general metric measure spaces. We find certain classes of nonlinear terms, including logistic type terms, for which solutions…

偏微分方程分析 · 数学 2024-09-17 Aníbal Rodríguez-Bernal , Silvia Sastre-Gomez

In this paper we give a new compactness criterion in the Lebesgue spaces $L^p((0,T)\times \Omega)$ and use it to obtain the first term in the asymptotic behaviour of the solutions of a nonlocal convection diffusion equation. We use previous…

偏微分方程分析 · 数学 2015-01-06 Liviu I. Ignat , Tatiana I. Ignat , Denisa Stancu-Dumitru

We consider a convection-diffusion model with linear fractional diffusion in the sub-critical range. We prove that the large time asymptotic behavior of the solution is given by the unique entropy solution of the convective part of the…

偏微分方程分析 · 数学 2022-12-07 Liviu Ignat , Diana Stan

We study the large-time behaviour of nonnegative solutions to the Cauchy problem for a nonlocal heat equation with a nonlinear convection term. The diffusion operator is the infinitesimal generator of a stable L\'evy process, which may be…

偏微分方程分析 · 数学 2023-11-29 Jørgen Endal , Liviu I. Ignat , Fernando Quirós

In this paper we consider a nonlocal evolution problem and obtain by a scaling method the first term in the asymptotic behavior of the solutions. The method employed treats in different way the smooth and the rough part of the solution.

偏微分方程分析 · 数学 2012-10-30 Tatiana I. Ignat

We study the large time behavior of solutions to a non-local diffusion equation, $u_t=J*u-u$ with $J$ smooth, radially symmetric and compactly supported, posed in $\mathbb{R}_+$ with zero Dirichlet boundary conditions. In sets of the form…

偏微分方程分析 · 数学 2013-08-23 Carmen Cortazar , Manuel Elgueta , Fernando Quiros , Noemi Wolanski

In this paper we study a broad class of non-local advection-diffusion models describing the behaviour of an arbitrary number of interacting species, each moving in response to the non-local presence of others. Our model allows for different…

偏微分方程分析 · 数学 2024-06-17 Valeria Giunta , Thomas Hillen , Mark Lewis , Jonathan Potts

In this paper, we consider a nonlocal advection model for two populations on a bounded domain. The first part of the paper is devoted to the existence and uniqueness of solutions and the associated semi-flow properties. Here we use the…

偏微分方程分析 · 数学 2018-12-18 Xiaoming Fu , Pierre Magal

The behaviour is investigated of solutions to a diffusion equation on the real line with nonlocal and singular reaction term, i.e., given by a Dirac source or sink at the origin. It gives a simplified representation of for example a control…

偏微分方程分析 · 数学 2026-05-19 Xiao Yang , Qiyao Peng , Sander C. Hille

In this paper we study the asymptotic behaviour of a nonlocal nonlinear parabolic equation governed by a parameter. After giving the existence of unique branch of solutions composed by stable solutions in stationary case, we gives for the…

偏微分方程分析 · 数学 2010-04-30 Armel Andami Ovono

This paper is devoted to a nonlocal reaction-diffusion-advection model that describes the spatial dynamics of freshwater organisms in a river with a directional motion. Our goal is to investigate how the advection rate affects the dynamic…

偏微分方程分析 · 数学 2024-05-14 Yaobin Tang , Binxiang Dai

In this paper we study the asymptotic behaviour of a nonlocal nonlinear parabolic equation governed by a parameter. After giving the existence of unique branch of solutions composed by stable solutions in stationary case, we gives for the…

偏微分方程分析 · 数学 2010-03-23 Armel Andami Ovono

We consider an initial value problem for a nonlocal differential equation with a bistable nonlinearity in several space dimensions. The equation is an ordinary differential equation with respect to the time variable t, while the nonlocal…

偏微分方程分析 · 数学 2016-06-02 Danielle Hilhorst , Hiroshi Matano , Thanh Nam Nguyen , Hendrik Weber

We consider a nonlocal nonlinear model with fractional diffusion motivated by studies of electroconvection phenomena in incompressible viscous fluids. We address the global well-posedness, global regularity and long time dynamics of the…

偏微分方程分析 · 数学 2023-10-02 E. Abdo , M. Ignatova

We consider the long time behavior of solutions to a nonlocal reaction diffusion equation that arises in the study of directed polymers. The model is characterized by convolution with a kernel $R$ and an $L^2$ inner product. In one spatial…

偏微分方程分析 · 数学 2022-11-22 Yu Gu , Christopher Henderson

We study the asymptotic behaviour of solutions of a class of linear non-local measure-valued differential equations with time delay. Our main result states that the solutions asymptotically exhibit a parabolic like behaviour in the large…

动力系统 · 数学 2019-01-01 Arnaud Ducrot , Alexandre Genadot
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