Block Preconditioners for Complex Symmetric Linear System with Two-by-Two Block Form

被引：0
作者：
Wu, Shi-Liang [1 ]
Li, Cui-Xia [1 ]
机构：
[1] Anyang Normal Univ, Sch Math & Stat, Anyang 455000, Peoples R China
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2015年 / 2015卷
关键词：
ITERATIVE METHODS; VARIANTS;
D O I：
10.1155/2015/618380
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on the previous work by Zhang and Zheng (A parameterized splitting iteration method for complex symmetric linear systems, Japan J. Indust. Appl. Math., 31 (2014) 265-278), three block preconditioners for complex symmetric linear system with two-by-two block form are presented. Spectral properties of the preconditioned matrices are discussed in detail. It is shown that all the eigenvalues of the preconditioned matrices are well-clustered. Numerical experiments are reported to illustrate the efficiency of the proposed preconditioners.
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页数：9
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