首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Convergence in competition models with small diffusion coefficients
Authors:V Hutson  K Mischaikow
Institution:a Department of Applied Mathematics, Sheffield University, Sheffield S3 7RH, UK
b Department of Mathematics, The Ohio State University, 231 W. 18th Avenue, Columbus, OH 43210, USA
c Center for Dynamical Systems and Nonlinear Studies, School of Mathematics, Georgia Institute of Technology, Atlanta, GA 30332, USA
Abstract:It is well known that for reaction-diffusion 2-species Lotka-Volterra competition models with spatially independent reaction terms, global stability of an equilibrium for the reaction system implies global stability for the reaction-diffusion system. This is not in general true for spatially inhomogeneous models. We show here that for an important range of such models, for small enough diffusion coefficients, global convergence to an equilibrium holds for the reaction-diffusion system, if for each point in space the reaction system has a globally attracting hyperbolic equilibrium. This work is planned as an initial step towards understanding the connection between the asymptotics of reaction-diffusion systems with small diffusion coefficients and that of the corresponding reaction systems.
Keywords:Reaction-diffusion  Competing species  Spatial inhomogeneity  Small diffusion limit  Asymptotic dynamics
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号