节点文献
基于严格α-双链对角占优矩阵的非奇H-矩阵的判定准则
Criteria for Nonsingular H-matrices Based on Strictly Double α-chain Diagonally Dominance Matrix
【摘要】 研究了非奇H-矩阵的判定问题.先给出了几个判定严格α-双链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,推广和改进了已有的相关结果,并用数值算例说明了这些判定方法的有效性.
【Abstract】 This paper is focused on the problem of criteria for nonsingular H-matrices.Several sufficient and necessary conditions for determining strictly double a-chain diagonally dominant matrices are given.Furthermore,some sufficient conditions for nonsingular Hmatrix by using the theory of diagonally dominant matrices are obtained.Some related results are improved.Effectiveness of such criteria is illustrated by numerical examples.
【关键词】 非奇H-矩阵;
严格α-双链对角占优矩阵;
不可约矩阵;
非零元素链;
【Key words】 nonsingular H-matrix; strictly double α-chain diagonally dominance matrix; irreducible matrix; non-zero elements chain;
【Key words】 nonsingular H-matrix; strictly double α-chain diagonally dominance matrix; irreducible matrix; non-zero elements chain;
【基金】 2015年度山西省回国人员科研资助项目(2015-068);山西农业大学科技创新基金(2016004);教育部产学合作专业综合改革项目(20150107)
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2017年09期
- 【分类号】O151.21
- 【被引频次】5
- 【下载频次】97