摘要
研究一个具有非线性-非局部反应的周期反应扩散系统.利用周期半流的渐近理论来讨论渐近波速c~*和周期行波解的存在性,证明参数c~*也是周期行波解的最小波速,并清晰描述解传播的阈值性质.最后给出渐近波速和最小波速c~*的估计.
A periodic reaction-diffusion system with nonlinear-nonlocal functional response is considered in this paper.We use the asymptotic theory for periodic semiflow to discuss the existence of spreading speed c* and periodic traveling wave solutions.The threshold property for the spreading spread of solutions is described clearly according to the threshold parameter c* which is exactly the minimal wave speed as well.Finally,we give an estimate of the spreading speed and minimal wave speed c*.
出处
《数学学报(中文版)》
CSCD
北大核心
2014年第5期1011-1030,共20页
Acta Mathematica Sinica:Chinese Series
基金
国家自然科学基金(11171120)
教育部高等学校博士学科点专项科研基金(20094407110001)
广东省自然科学基金项目(10151063101000003)
关键词
渐近波速
周期行波解
非局部效应
spreading speed
periodic traveling wave solution
nonlocal effect