Sparse algorithms for indefinite system of linear equations

被引：24

作者：

Chen, P ^{[1
]}

Runesha, H

Nguyen, DT

Tong, P

Chang, TYP

机构：

[1] Hong Kong Univ Sci & Technol, Kowloon, Hong Kong, Peoples R China

[2] Old Dominion Univ, Norfolk, VA USA

来源：

COMPUTATIONAL MECHANICS | 2000年 / 25卷 / 01期

关键词：

D O I：

10.1007/s004660050013

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Sparse LDLT algorithms, based upon mixed forward-backward factorization strategies, are developed for direct solution of indefinite system of linear equations. A simple rotation matrix is also introduced and incorporated into 2 x 2 pivoting strategies. Several test problems have been conducted in order to evaluate the numerical performance of the proposed algorithms, and its associated FORTRAN codes.

引用

页码：33 / 42

页数：10

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