摘要
首先给出了广义次对角占优矩阵的概念,研究了广义次对角占优矩阵的判定方法,并给出了判断广义次对角占优矩阵的一个充要条件。
We first give the concept of generalized subdiagonally dominant matrices, then study the methods for judging generalized subdiagonally dominant matrices ,and obtain a sufficient and necessary condition for judging generalized subdiagonally dominant matrices.
出处
《皖西学院学报》
2007年第5期22-25,共4页
Journal of West Anhui University
关键词
次对角占优矩阵
严格次对角占优矩阵
广义次对角占优矩阵
次矩阵.
subdiagonally dominant matrices
strictly subdiagonally dominant matrices
generalized subdiagonally dominant matrices
sub M - matrices
