A Lanczos approach to the inverse square root of a large and sparse matrix

被引：19

作者：

Boriçi, A ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2000年 / 162卷 / 01期

关键词：

D O I：

10.1006/jcph.2000.6529

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

I construct a Lanczos process on a large and sparse matrix and use the results of this iteration to compute the inverse square root of the same matrix. The algorithm is a stable version of an earlier proposal by the author. It can be used fur problems related to the matrix sign and polar decomposition. The application here comes from the theory of chiral fermions on the lattice. (C) 2000 Academic Press.

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页码：123 / 131

页数：9

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