Numerical analysis for the time distributedorder and Riesz space fractional diffusions on bounded domains
Ye, H., Liu, F., Anh, V., & Turner, I. (2015) Numerical analysis for the time distributedorder and Riesz space fractional diffusions on bounded domains. IMA Journal of Applied Mathematics, 80(3), pp. 825838.

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Abstract
Subdiffusion equations with distributedorder fractional derivatives describe some important physical phenomena. In this paper, we consider the time distributedorder and Riesz space fractional diffusions on bounded domains with Dirichlet boundary conditions. Here, the time derivative is defined as the distributedorder fractional derivative in the Caputo sense, and the space derivative is defined as the Riesz fractional derivative. First, we discretize the integral term in the time distributedorder and Riesz space fractional diffusions using numerical approximation. Then the given equation can be written as a multiterm time–space fractional diffusion. Secondly, we propose an implicit difference method for the multiterm time–space fractional diffusion. Thirdly, using mathematical induction, we prove the implicit difference method is unconditionally stable and convergent. Also, the solvability for our method is discussed. Finally, two numerical examples are given to show that the numerical results are in good agreement with our theoretical analysis.
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ID Code:  82691 

Item Type:  Journal Article 
Refereed:  Yes 
DOI:  10.1093/imamat/hxu015 
ISSN:  14643634 
Subjects:  Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Dynamical Systems in Applications (010204) Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > NUMERICAL AND COMPUTATIONAL MATHEMATICS (010300) 
Divisions:  Current > Research Centres > ARC Centre of Excellence for Mathematical & Statistical Frontiers (ACEMS) Current > Schools > School of Mathematical Sciences Current > QUT Faculties and Divisions > Science & Engineering Faculty 
Copyright Owner:  Copyright 2014 Oxford University Press 
Deposited On:  23 Mar 2015 04:54 
Last Modified:  07 Jun 2016 06:50 
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