数学杂志2013，Vol.33Issue(4)：679-682,4.
逆为三对角矩阵的逆M-矩阵
ON AN INVERSE M-MATRIX WITH A TRIDIAGONAL INVERSE MATRIX
摘要
Abstract
In this paper,we discuss the properties of a special inverse M-matrix.Based on characters and properties of directed graph,we give the necessary and sufficient conditions for the inverse matrix.In some special case,we generalize the condition for a matrix of type D to be inverse M-matrix and its inverse to be a tridiagonal matrix.关键词
有向图/三对角矩阵/逆M-矩阵Key words
directed graph/ tridiagonal matrix/ inverse M-matrix分类
数理科学引用本文复制引用
殷云星..逆为三对角矩阵的逆M-矩阵[J].数学杂志,2013,33(4):679-682,4.基金项目
华北电力大学青年教师科研基金资助(932090902). （932090902）
