Title
Optimal error bound and simplified Tikhonov regularization method for a backward problem for the time-fractional diffusion equation.
Abstract
In this paper, we consider a backward problem for a time-fractional diffusion equation. Such a problem is ill-posed. The optimal error bound for the problem under a source condition is analyzed. A simplified Tikhonov regularization method is utilized to solve the problem, and its convergence rates are analyzed under an a priori regularization parameter choice rule and an a posteriori regularization parameter choice rule, respectively. Numerical examples show that the proposed regularization method is effective and stable, and both parameter choice rules work well.
Year
DOI
Venue
2015
10.1016/j.cam.2014.11.026
J. Computational Applied Mathematics
Keywords
Field
DocType
inverse problem
Tikhonov regularization,Convergence (routing),Mathematical optimization,Well-posed problem,Mathematical analysis,Backus–Gilbert method,Regularization (mathematics),Inverse problem,Mathematics,Diffusion equation,Regularization perspectives on support vector machines
Journal
Volume
Issue
ISSN
279
C
0377-0427
Citations 
PageRank 
References 
0
0.34
3
Authors
3
Name
Order
Citations
PageRank
Jun-Gang Wang141.88
T. Wei28718.96
Yubin Zhou3295.13