A GENERALIZED SIMPLIFIED HERMITIAN AND SKEW-HERMITIAN SPLITTING PRECONDITIONER FOR DOUBLE SADDLE POINT PROBLEMS
- 作者: Meng L.1, He Y.W.2,1, Li J.1
- 
							隶属关系: 
							- College of Mathematics and Statistics, Northwest Normal University
- Institute for Advanced Study in History of Science, Northwest University
 
- 期: 卷 63, 编号 5 (2023)
- 页面: 715
- 栏目: General numerical methods
- URL: https://rjeid.com/0044-4669/article/view/664845
- DOI: https://doi.org/10.31857/S0044466923050149
- EDN: https://elibrary.ru/DXFIAI
- ID: 664845
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详细
In this work, we mainly propose a generalized simplified Hermitian and skew-Hermitian splitting (GSHSS) preconditioner for solving double saddle point problems and the eigenvalue distribution of the GSHSS preconditioner is analyzed in detail. In addition, we also study the eigenvector distribution and the degree of the minimal polynomial of the preconditioned matrix. Finally, numerical experiments show the effectiveness of the proposed preconditioner.
作者简介
L. Meng
College of Mathematics and Statistics, Northwest Normal University
														Email: heyuwen18793436582@163.com
				                					                																			                												                								730070, Lanzhou, China						
Y. He
Institute for Advanced Study in History of Science, Northwest University; College of Mathematics and Statistics, Northwest Normal University
														Email: heyuwen18793436582@163.com
				                					                																			                												                								710127, Xi’an, China; 730070, Lanzhou, China						
J. Li
College of Mathematics and Statistics, Northwest Normal University
							编辑信件的主要联系方式.
							Email: heyuwen18793436582@163.com
				                					                																			                												                								730070, Lanzhou, China						
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