Spectral Analysis for HSS Preconditioners

查看全文 作　　者：Lung Chak [1]Chan;Michael K. [2]Ng;Nam Kiu [1]Tsing

机构地区：[1]Department of Mathematics, The University of Hong Kong, Pokfulam Road, Hong Kong;[2]Department of Mathematics, Hong Kong Baptist University, Kowloon Tong, Hong Kong

出　　处：《Numerical Mathematics(Theory,Methods and Applications)》索引2008年第1卷第1期,共21页

摘　　要：In this paper,we are interested in HSS preconditioners for saddle point lin- ear systems with a nonzero(2,2)-th block.We study an approximation of the spectra of HSS preconditioned matrices and use these results to illustrate and explain the spectra obtained from numerical examples,where the previous spectral analysis of HSS precon- ditioned matrices does not cover. 关键词：迭代方法预处理光谱分析数学模拟

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Spectral Analysis for HSS Preconditioners

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