Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4642216 | Journal of Computational and Applied Mathematics | 2009 | 11 Pages |
Abstract
By transforming nonsymmetric linear systems to the extended skew-symmetric ones, we present the skew-symmetric methods for solving nonsymmetric linear systems with multiple right-hand sides. These methods are based on the block and global Arnoldi algorithm which is formed by implementing orthogonal projections of the initial matrix residual onto a matrix Krylov subspace. The algorithms avoid the tediously long Arnoldi process and highly reduce expensive storage. Numerical experiments show that these algorithms are effective and give better practical performances than global GMRES for solving nonsymmetric linear systems with multiple right-hand sides.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Chuanqing Gu, Hongjun Qian,