Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8052796 | Applied Mathematical Modelling | 2013 | 15 Pages |
Abstract
Rezghi and Hosseini [M. Rezghi, S.M. Hosseini, Lanczos based preconditioner for discrete ill-posed problems, Computing 88 (2010) 79-96] presented a Lanczos based preconditioner for discrete ill-posed problems. Their preconditioner is constructed by using few steps (e.g., k) of the Lanczos bidiagonalization and corresponding computed singular values and right Lanczos vectors. In this article, we propose an efficient method to set up such preconditioner. Some numerical examples are given to show the effectiveness of the method.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Shervan Erfani, Ali Tavakoli, Davod Khojasteh Salkuyeh,