Modified block symmetric SOR preconditioners for large sparse saddle-point problems

被引：1
|
作者：
Zhang, Litao [1 ]
Cheng, Shaohua [1 ]
机构：
[1] Zhengzhou Inst Aeronaut Ind Management, Dept Math & Phys, Zhengzhou 450015, Henan, Peoples R China
来源：
INDUSTRIAL INSTRUMENTATION AND CONTROL SYSTEMS, PTS 1-4 | 2013年 / 241-244卷
关键词：
Saddle point problem; Block symmetric SOR method; Preconditioner; SSOR PRECONDITIONERS; LINEAR-SYSTEMS;
D O I：
10.4028/www.scientific.net/AMM.241-244.2583
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, based on the preconditioners presented by Wang [On hybrid preconditioning methods for large sparse saddle-point problems, Linear Algebra Appl., 434 (2011) 2353-2366], we introduce and study the block symmetric SOR (BSSOR) and the modified block symmetric SOR (MBSSOR) preconditioners for the block traingular product approximation to a 2-by-2 block matrix and these preconditioners are the generalization of BSGS and MBSGS preconditioners presented by Wang. Moreover, we analyse the properties of the corresponding preconditioned matrices.
引用
收藏
页码：2583 / 2586
页数：4
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