Uniqueness and stability of forced waves for the Fisher-KPP equation in a shifting environment ☆

被引:0
作者
Guo, Jong-Shenq [1 ]
Guo, Karen [2 ]
Shimojo, Masahiko [3 ]
机构
[1] Tamkang Univ, Dept Math, New Taipei City 251301, Taiwan
[2] Providence Univ, Dept Data Sci & Big Data Analyt, Taichung, Taiwan
[3] Tokyo Metropolitan Univ, Dept Math Sci, Hachioji, Tokyo 1920397, Japan
关键词
Forced wave; Shifting speed; Saturation; Stability; Uniqueness; REACTION-DIFFUSION EQUATIONS; PRINCIPAL EIGENVALUE; POPULATION-DYNAMICS; ELLIPTIC-OPERATORS; CLIMATE-CHANGE; MODEL;
D O I
10.1016/j.na.2024.113607
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we investigate the existence, uniqueness and stability of forced waves for the Fisher-KPP equation in a shifting environment without imposing the monotonicity condition on the shifting intrinsic growth term. First, the existence of forced waves for some range of shifting speeds is proved. Then we prove the uniqueness of saturation forced waves. Moreover, a new method is introduced to derive the non-existence of forced waves. Finally, we derive the stability of forced waves under certain perturbation of a class of initial data.
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页数:10
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