Modified HSS iteration methods for a class of non-Hermitian positive-definite linear systems
Modified HSS iteration methods for a class of non-Hermitian positive-definite linear systems
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一类非厄米特正定线性系统的改进HSS迭代方法
DOI:
10.1016/j.amc.2012.03.088
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发表时间:
2012-06
影响因子:
4
通讯作者:
王珅
中科院分区:
文献类型:
--
作者:
郭晓霞;王珅
We consider the numerical solution of a class of non-Hermitian positive-definite linear systems by the modified Hermitian and skew-Hermitian splitting (MHSS) iteration method. We show that the MHSS iteration method converges unconditionally even when the real and the imaginary parts of the coefficient matrix are nonsymmetric and positive semidefinite and, at least, one of them is positive definite. At each step the MHSS iteration method requires to solve two linear sub-systems with real nonsymmetric positive definite coefficient matrices. We propose to use inner iteration methods to compute approximate solutions of these linear sub-systems. We illustrate the performance of the MHSS method and its inexact variant by two numerical examples.
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影响因子:
2.1
作者:
O. Axelsson;Z. Bai;Shou-Xia Qiu
通讯作者:
O. Axelsson;Z. Bai;Shou-Xia Qiu
影响因子:
3.7
作者:
Zhong-Zhi Bai;M. Benzi;Fang Chen
通讯作者:
Zhong-Zhi Bai;M. Benzi;Fang Chen
DOI:
10.1137/s0895479801395458
发表时间:
2003-01-01
影响因子:
1.5
作者:
Bai, ZZ;Golub, GH;Ng, MK
通讯作者:
Ng, MK
影响因子:
0.9
作者:
Fang;Chen;Yao-lin;Jiang;Zheng
通讯作者:
Fang;Chen;Yao-lin;Jiang;Zheng
影响因子:
4.3
作者:
Steven P. Hamilton;M. Benzi;Eldad Haber
通讯作者:
Steven P. Hamilton;M. Benzi;Eldad Haber