The Grünwald-Letnikov method for fractional differential equations

Authors:
Rudolf Scherer;Shyam L. Kalla;Yifa Tang;Jianfei Huang
Affiliations:
Institute for Applied and Numerical Mathematics, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany;Institute of Mathematics, Vyas Institute of Higher Education, Jodhpur, India;LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, PR China;LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, PR China
Venue:
Computers & Mathematics with Applications
Year:
2011

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Abstract

This paper is devoted to the numerical treatment of fractional differential equations. Based on the Grunwald-Letnikov definition of fractional derivatives, finite difference schemes for the approximation of the solution are discussed. The main properties of these explicit and implicit methods concerning the stability, the convergence and the error behavior are studied related to linear test equations. The asymptotic stability and the absolute stability of these methods are proved. Error representations and estimates for the truncation, propagation and global error are derived. Numerical experiments are given.