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Moving Finite Element Methods for a System of Semi-Linear Fractional Diffusion Equations

Published online by Cambridge University Press:  19 September 2016

Jingtang Ma*
Affiliation:
School of Economic Mathematics, Southwestern University of Finance and Economics, Chengdu 611130, China
Zhiqiang Zhou*
Affiliation:
School of Economic Mathematics, Southwestern University of Finance and Economics, Chengdu 611130, China
*
*Corresponding author. Email:[email protected] (J. T. Ma), [email protected] (Z. Q. Zhou)
*Corresponding author. Email:[email protected] (J. T. Ma), [email protected] (Z. Q. Zhou)
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Abstract

This paper studies a system of semi-linear fractional diffusion equations which arise in competitive predator-prey models by replacing the second-order derivatives in the spatial variables with fractional derivatives of order less than two. Moving finite element methods are proposed to solve the system of fractional diffusion equations and the convergence rates of the methods are proved. Numerical examples are carried out to confirm the theoretical findings. Some applications in anomalous diffusive Lotka-Volterra and Michaelis-Menten-Holling predator-prey models are studied.

Type
Research Article
Copyright
Copyright © Global-Science Press 2016 

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