Improved splitting preconditioner for double saddle point problems arising from liquid crystal director modeling

被引：0
作者：
Bi-Cong Ren
Fang Chen
Xiao-Liang Wang
机构：
[1] Beijing Information Science and Technology University,School of Applied Science
[2] Beijing Institute of Technology,School of Aerospace Engineering
来源：
Numerical Algorithms | 2022年 / 91卷
关键词：
Double saddle point problem; Preconditioning; Matrix splitting; 65F10; 65F08;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
To improve the performance of alternating positive semidefinite splitting (APSS) preconditioner, we present an improved APSS (IAPSS) preconditioner for the double saddle point problem arising from liquid crystal director modeling. Theoretical analysis shows that all eigenvalues of the IAPSS-preconditioned matrix are real and located in the interval (0, 2). Numerical examples also show the efficiency of the proposed preconditioner.
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页码：1363 / 1379
页数：16
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