期刊
APPLIED MATHEMATICS AND COMPUTATION
卷 196, 期 1, 页码 294-302出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amc.2007.05.048
关键词
fractional derivative; fractional diffusion equation; Adomian decomposition method; modified decomposition method; the self-cancelling noise terms
Spatially fractional order diffusion equations are generalizations of classical diffusion equations which are increasingly used in modeling practical super diffusive problems in fluid flow, finance and others areas of application. This paper presents the analytical solutions of the space fractional diffusion equations by Modified decomposition method (MDM). By using initial conditions, the explicit solutions of the equations have been presented in the closed form. The decomposition series analytic solution of the problem is quickly obtained by observing the existence of the self-cancelling noise phenomenon. Two examples, the first one is one-dimensional and the second one is two-dimensional fractional diffusion equation, are presented to show the application of the present technique. The present method performs extremely well in terms of efficiency and simplicity. (c) 2007 Elsevier Inc. All rights reserved.
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