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A Fully Discrete Spectral Method for Fisher’s Equation on the Whole Line

Published online by Cambridge University Press:  19 October 2016

Yu-Jian Jiao
Affiliation:
Department of Mathematics, Shanghai Normal University, Shanghai, 200234, P. R. China; Scientific Computing Key Laboratory of Shanghai Universities
Tian-Jun Wang*
Affiliation:
Henan University of Science and Technology, Luoyang, 471003, P. R. China
Qiong Zhang
Affiliation:
Henan University of Science and Technology, Luoyang, 471003, P. R. China
*
*Corresponding author. Email address:[email protected] (T.-J. Wang)
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Abstract

A generalised Hermite spectral method for Fisher's equation in genetics with different asymptotic solution behaviour at infinities is proposed, involving a fully discrete scheme using a second order finite difference approximation in the time. The convergence and stability of the scheme are analysed, and some numerical results demonstrate its efficiency and substantiate our theoretical analysis.

Type
Research Article
Copyright
Copyright © Global-Science Press 2016 

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