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An exact solution of Fisher equation and its stability
Authors:Duan Wen-Shan  Yang Hong-Juan  Shi Yu-Ren
Affiliation:College of Physics and Electronic Engineering,Northwest Normal University, Lanzhou 730070, China
Abstract:In this paper, the Fisher equation is analysed. One of its travelling wave solutionis obtained by comparing it with KdV--Burgers (KdVB) equation. Its amplitude, widthand speed are investigated. The instability for the higher order disturbances to thesolution of the Fisher equation is also studied.
Keywords:Fisher equation   KdVB equation
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