EXPONENTIAL STABILITY OF THE TRAVELING FRONTS FOR A VISCOUS FISHER-KPP EQUATION

被引:1
|
作者
Wang, Lina [1 ]
Bai, Xueli [1 ]
Cao, Yang [2 ]
机构
[1] E China Normal Univ, Ctr PDE, Shanghai 200241, Peoples R China
[2] Dalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R China
来源
关键词
Traveling fronts; singular perturbation method; spectral analysis; Evans function; exponential stability; SINGULAR PERTURBATION-THEORY; DIFFUSION EQUATION; ENTROPY SOLUTIONS; WAVES;
D O I
10.3934/dcdsb.2014.19.801
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper is concerned with the stability of traveling front solutions for a viscous Fisher-KPP equation. By applying geometric singular perturbation method, special Evans function estimates, detailed spectral analysis and C-0 semigroup theories, each traveling front solution with wave speed c < -2 root f'(0) is proved to be locally exponentially stable in some appropriate exponentially weighted spaces.
引用
收藏
页码:801 / 815
页数:15
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