Title
A new a posteriori parameter choice strategy for the convolution regularization of the space-fractional backward diffusion problem.
Abstract
In this paper, we consider a backward space-fractional diffusion problem. We propose an a posteriori parameter choice rule for the regularization method given in Zheng and Wei (2010), where the authors proposed a regularization method called convolution regularization method, and gave an a priori parameter choice strategy. In this paper, we study the same problem but give a new a posteriori parameter choice based on a modified version of the discrepancy principle, and obtain a log -type error estimate under an additional source condition. Numerical results show that our method is feasible.
Year
DOI
Venue
2015
10.1016/j.cam.2014.11.013
J. Computational Applied Mathematics
Keywords
Field
DocType
Backward space-fractional diffusion problem,Posteriori parameter choice strategy,Convolution regularization method,Error estimate
Mathematical optimization,Convolution,A priori and a posteriori,Regularization (mathematics),Mathematics
Journal
Volume
Issue
ISSN
279
C
0377-0427
Citations 
PageRank 
References 
0
0.34
3
Authors
4
Name
Order
Citations
PageRank
Cong Shi111.04
Chen Wang230.71
Guanghui Zheng300.34
T. Wei48718.96