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一类符号规则矩阵的双对角分解刻画
发表时间:2013-01-15 浏览量:2096 下载量:602
全部作者: | 赵英岩,黄荣 |
作者单位: | 湘潭大学数学与计算科学学院 |
摘 要: | 如果矩阵所有同阶子式具有相同的符号或者为零,则该矩阵称为符号规则矩阵。矩阵的双对角分解在高相对精度数值计算中起着重要的作用。本文主要结果是应用Neville消去法给出一类符号规则矩阵的双对角分解刻画。 |
关 键 词: | 数值代数;符号规则矩阵;双对角矩阵;Neville消去法 |
Title: | The bidiagonal factorizations of certain sign regular matrices |
Author: | ZHAO Yingyan, HUANG Rong |
Organization: | School of Mathematics and Computational Science, Xiangtan University |
Abstract: | A matrix is called sign regular if all minors with the same order have the same sign or zero. The bidiagonal factorization plays an important role in high relative accuracy computations. In this paper, the factorizations of certain sign regular matrices as a product of bidiagonal matrices is presented in terms of Neville elimination. |
Key words: | numerical algebra; sign regular matrices; bidiagonal matrices; Neville elimination |
发表期数: | 2013年1月第1期 |
引用格式: | 赵英岩,黄荣. 一类符号规则矩阵的双对角分解刻画[J]. 中国科技论文在线精品论文,2013,6(1):16-22. |

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