实矩阵和整数矩阵的WZ分解

IF 0.4 Q4 MATHEMATICS

Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-04-01 DOI:10.52547/ijmsi.17.1.71

E. Golpar-Raboky, E. Babolian

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引用次数: 1

摘要

． Evans和Hatzopoulos的QIF(象限联锁分解)方法利用WZ分解求解线性方程组。WZ分解可能比LU分解快，因为它同时执行两列或两行的求值。本文给出了一种利用矩阵a的一些特殊的嵌套子矩阵的零空间生成器计算实数和整数WZ和ZW分解的方法。

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On the WZ Factorization of the Real and Integer Matrices

. The QIF (Quadrant Interlocking Factorization) method of Evans and Hatzopoulos solves linear equation systems using WZ factorization. The WZ factorization can be faster than the LU factorization because, it performs the simultaneous evaluation of two columns or two rows. Here, we present a method for computing the real and integer WZ and ZW factorizations by using the null space generators of some special nested submatrices of a matrix A .

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来源期刊

Iranian Journal of Mathematical Sciences and Informatics MATHEMATICS-

CiteScore

0.90

自引率

0.00%

发文量