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We consider a class of reaction-diffusion equations with a stochastic perturbation on the boundary. We show that in the limit of fast diffusion, one can rigorously approximate solutions of the system of PDEs with stochastic Neumann boundary…

偏微分方程分析 · 数学 2014-08-13 Wael W. Mohammed , Dirk Blömker

Although the spatially continuous version of the reaction-diffusion equation has been well studied, in some instances a spatially-discretized representation provides a more realistic approximation of biological processes. Indeed,…

动力系统 · 数学 2023-11-27 Jacqueline M. Wentz , David M. Bortz

A general reaction-diffusion equation with spatiotemporal delay and homogeneous Dirichlet boundary condition is considered. The existence and stability of positive steady state solutions are proved via studying an equivalent…

偏微分方程分析 · 数学 2021-02-24 Wenjie Zuo , Junping Shi

We study the appearance of a boundary condition along an interface between two regions, one with constant diffusivity $1$ and the other with diffusivity $\eps>0$, when $\eps\to0$. In particular, we take Fick's diffusion law in a context of…

偏微分方程分析 · 数学 2023-08-11 Danielle Hilhorst , Seung-Min Kang , Ho-Youn Kim , Yong-Jung Kim

We study the global existence and uniform-in-time bounds of classical solutions in all dimensions to reaction-diffusion systems dissipating mass. By utilizing the duality method and the regularization of the heat operator, we show that if…

偏微分方程分析 · 数学 2019-05-28 Brian P. Cupps , Jeff Morgan , Bao Quoc Tang

We study the existence and uniqueness of a solution to a linear stationary convection-diffusion equation stated in an infinite cylinder, Neumann boundary condition being imposed on the boundary. We assume that the cylinder is a junction of…

偏微分方程分析 · 数学 2017-04-14 Irina Pettersson , Andrey Piatnitski

We study the well-posedness of a nonlinear reaction diffusion partial differential equation system on the half-line coupled with a stochastic dynamical boundary condition, a random system arising from the description of the chemical…

概率论 · 数学 2025-05-12 Mario Maurelli , Daniela Morale , Stefania Ugolini

The goal of this work is to establish the global existence of nonnegative classical solutions in all dimensions for a system of highly nonlinear reaction-diffusion equations. We address the case for different diffusion coefficients and the…

偏微分方程分析 · 数学 2022-09-16 Nibedita Ghosh , Hari Shankar Mahato

The rigorous asymptotics from reaction-cross-diffusion systems for three species with known entropy to cross-diffusion systems for two variables is investigated. The equations are studied in a bounded domain with no-flux boundary…

偏微分方程分析 · 数学 2017-10-11 E. S. Daus , L. Desvillettes , A. Jüngel

We consider reaction diffusion systems where components diffuse inside the domain and react on the surface through mass transport type boundary conditions. Under reasonable hypotheses, we establish the existence of component wise…

偏微分方程分析 · 数学 2020-05-05 Vandana Sharma

We consider a reaction-diffusion system for two densities lying in adjacent domains of $\mathbb{R}^N$. We treat two configurations: either a cylinder and its complement, or two half-spaces. Diffusion and reaction heterogeneities for the two…

偏微分方程分析 · 数学 2025-06-06 Henri Berestycki , Luca Rossi , Andrea Tellini

We consider a reaction-diffusion system where some components react and diffuse on the boundary of a region, while other components diffuse in the interior and react with those on the boundary through mass transport. We establish criteria…

偏微分方程分析 · 数学 2015-12-31 Vandana Sharma , Jeff Morgan

This paper explores the classification of parameter spaces for reaction-diffusion systems of two chemical species on stationary domains. The dynamics of the system are explored both in the absence and presence of diffusion. The parameter…

斑图形成与孤子 · 物理学 2017-01-19 Wakil Sarfaraz , Anotida Madzvamuse

We consider a reaction-diffusion system where some components react and diffuse on the boundary of a region, while other components diffuse in the interior and react with those on the boundary through mass transport. We establish local…

偏微分方程分析 · 数学 2015-11-20 Vandana Sharma , Jeff Morgan

In this paper, we consider the large-time behavior of solutions of a reaction diffusion system arising from a nuclear reactor model with the Robin boundary conditions, which consists of two real-valued unknown functions. In particular, we…

偏微分方程分析 · 数学 2018-11-12 Kosuke Kita , Mitsuharu Ôtani

The aim of this work is to study the effect of diffusion on the stability of the equilibria in a general two-components reaction-diffusion system with Neumann boundary conditions in the space of continuous functions. As by product, we…

偏微分方程分析 · 数学 2023-12-19 Francisco J. Vielma-Leal , Miguel A. D. R. Palma , Miguel Montenegro-Concha

We study reaction-diffusion equations in cylinders with possibly nonlinear diffusion and possibly nonlinear Neumann boundary conditions. We provide a geometric Poincar\'e-type inequality and classification results for stable solutions, and…

偏微分方程分析 · 数学 2016-06-28 Serena Dipierro , Nicola Soave , Enrico Valdinoci

Realistic examples of reaction-diffusion phenomena governing spatial and spatiotemporal pattern formation are rarely isolated systems, either chemically or thermodynamically. However, even formulations of `open' reaction-diffusion systems…

斑图形成与孤子 · 物理学 2021-05-14 Andrew L. Krause , Václav Klika , Philip K. Maini , Denis Headon , Eamonn A. Gaffney

Systems consisting of a single ordinary differential equation coupled with one reaction-diffusion equation in a bounded domain and with the Neumann boundary conditions are studied in the case of particular nonlinearities from the…

偏微分方程分析 · 数学 2022-07-01 Szymon Cygan , Anna Marciniak-Czochra , Grzegorz Karch

We study the uniform boundedness of solutions to reaction-diffusion systems possessing a Lyapunov-like function and satisfying an {\it intermediate sum condition}. This significantly generalizes the mass dissipation condition in the…

偏微分方程分析 · 数学 2020-06-24 Jeff Morgan , Bao Quoc Tang
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