Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4637992 | Journal of Computational and Applied Mathematics | 2016 | 17 Pages |
Abstract
Linear systems with multiple right-hand sides arise in many applications. To solve such systems efficiently, a new deflated block GCROT(m,km,k) method is explored in this paper by exploiting a modified block Arnoldi deflation. Incorporating this modified block Arnoldi deflation, the new algorithm can address the possible linear dependence at each iteration during the block Arnoldi procedure and reduces expensive computational operations. Moreover, as a block version of GCROT(m,km,k), the new method inherits the property of easy operability. Finally, some numerical examples also illustrate the effectiveness of the proposed method.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Jing Meng, Hou-Biao Li, Yan-Fei Jing,