Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8901641 | Journal of Computational and Applied Mathematics | 2019 | 17 Pages |
Abstract
An efficient single-step iteration method is presented for solving the large sparse non-Hermitian positive definite linear systems. We theoretically prove that this method converges to the unique solution of the system of linear equations under suitable restrictions. Moreover, we derive an upper bound for the spectral radius of the new iteration matrix. Furthermore, we consider acceleration of the new iteration by Krylov subspace methods and some special properties of the new preconditioned matrix are proposed. Numerical experiments on a few model problems are presented to further examine the effectiveness of our new method.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Xiang Wang, Xiao-Yong Xiao, Qing-Qing Zheng,