An alternating LHSS preconditioner for saddle point problems
被引:0
作者:
Liu Qingbing
论文数: 0引用数: 0
h-index: 0
机构:
Zhejiang Wanli Univ, Dept Math, Ningbo 315100, Zhejiang, Peoples R China
E China Normal Univ, Dept Math, Shanghai 200241, Peoples R ChinaZhejiang Wanli Univ, Dept Math, Ningbo 315100, Zhejiang, Peoples R China
Liu Qingbing
[1
,2
]
机构:
[1] Zhejiang Wanli Univ, Dept Math, Ningbo 315100, Zhejiang, Peoples R China
[2] E China Normal Univ, Dept Math, Shanghai 200241, Peoples R China
In this paper, we present a new alternating local Hermitian and skew-Hermitian splitting preconditioner for solving saddle point problems. The spectral property of the preconditioned matrices is studies in detail. Theoretical results show all eigenvalues of the preconditioned matrices will generate two tight clusters, one is near (0, 0) and the other is near (2, 0) as the iteration parameter tends to zero from positive. Numerical experiments are given to validate the performances of the preconditioner.
机构:
Cent S Univ, Sch Math, Changsha 410083, Peoples R China
S China Normal Univ, Nanhai Coll, Foshan 528225, Peoples R ChinaS China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China
Peng, Xiao-Fei
Li, Wen
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机构:
S China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R ChinaS China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China
机构:
Yunnan Normal Univ, Sch Math, Kunming, Yunnan, Peoples R ChinaYunnan Normal Univ, Sch Math, Kunming, Yunnan, Peoples R China
Li, Cuixia
Wu, Shiliang
论文数: 0引用数: 0
h-index: 0
机构:
Yunnan Normal Univ, Sch Math, Kunming, Yunnan, Peoples R China
Yunnan Normal Univ, Yunnan Key Lab Modern Analyt Math & Applicat, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Sch Math, Kunming, Yunnan, Peoples R China
Wu, Shiliang
JOURNAL OF APPLIED ANALYSIS AND COMPUTATION,
2023,
13
(06):
: 3221
-
3230
机构:
Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China
Nanchang Univ, Dept Math, Nanchang 330031, Jiangxi, Peoples R ChinaLanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China
Liao, Li-Dan
Zhang, Guo-Feng
论文数: 0引用数: 0
h-index: 0
机构:
Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R ChinaLanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China
Zhang, Guo-Feng
Zhu, Mu-Zheng
论文数: 0引用数: 0
h-index: 0
机构:
Hexi Univ, Sch Math & Stat, Zhangye 734000, Peoples R ChinaLanzhou Univ, Sch Math & Stat, Lanzhou 730000, Gansu, Peoples R China