Title
Spectral regularization method for solving a time-fractional inverse diffusion problem
Abstract
In this paper, we consider an inverse problem for a time-fractional diffusion equation with one-dimensional semi-infinite domain. The temperature and heat flux are sought from a measured temperature history at a fixed location inside the body. We show that such problem is severely ill-posed and further apply a spectral regularization method to solve it based on the solution given by the Fourier method. Convergence estimates are presented under a priori bound assumptions for the exact solution. Finally, numerical examples are given to show that the proposed numerical method is effective.
Year
DOI
Venue
2011
10.1016/j.amc.2011.05.076
Applied Mathematics and Computation
Keywords
Field
DocType
Spectral regularization,Time-fractional inverse diffusion,Caputo’s fractional derivatives,Temperature,Heat flux,Fourier transform,Laplace transform
Convergence (routing),Inverse,Mathematical optimization,Laplace transform,Mathematical analysis,Fourier transform,Regularization (mathematics),Inverse problem,Numerical analysis,Diffusion equation,Mathematics
Journal
Volume
Issue
ISSN
218
2
0096-3003
Citations 
PageRank 
References 
4
0.55
4
Authors
2
Name
Order
Citations
PageRank
G.H. Zheng140.55
T. Wei28718.96