摘要
本文给出了几个判定严格α-对角占优矩阵的充要条件,进一步利用矩阵对角占优理论得到了判定非奇H-矩阵的一些充分条件,并用数值算例说明了这些结论的有效性.
In this paper, several sufficient and necessary conditions for determining strictly α- diagonally dominant matrices are given. Furthermore, some sufficient conditions for non- singular H-matrix by using the theory of diagonally dominant matrices are obtained. The numerical example illustrates the effectiveness of the criteria.
出处
《数值计算与计算机应用》
CSCD
北大核心
2011年第3期203-208,共6页
Journal on Numerical Methods and Computer Applications
基金
国家自然科学基金(10802068)资助项目
关键词
非奇H-矩阵
严格α-对角占优矩阵
nonsingular H-matrix
strictly α-diagonally dominant matrix
