吉林大学学报(理学版) ›› 2022, Vol. 60 ›› Issue (3): 597-603.

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非奇异H-矩阵的迭代判定

李敏1, 桑海风1, 龚言1, 刘畔畔1, 王美娟1,2   

  1. 1. 北华大学 数学与统计学院, 吉林 吉林 132013; 2. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2021-09-16 出版日期:2022-05-26 发布日期:2022-05-26
  • 通讯作者: 桑海风 E-mail:sanghaifeng2008@163.com

Iterative Criteria for Nonsingular H-Matrices

LI Min1, SANG Haifeng1, GONG Yan1, LIU Panpan1, WANG Meijuan1,2   

  1. 1. College of Mathematics and Statistics, Beihua University, Jilin 132013, Jilin Province, China;
    2. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2021-09-16 Online:2022-05-26 Published:2022-05-26

摘要: 首先, 根据α-对角占优矩阵理论, 对矩阵的行指标集进行恰当划分; 其次, 通过选择递进迭代系数构造正对角矩阵, 从而给出广义严格α-对角占优矩阵的判定条件, 进而得到非奇异H-矩阵的判定准则. 数值算例结果表明, 该判定准则有效.

关键词: 对角占优矩阵, α-对角占优矩阵, 非奇异H-矩阵

Abstract: Firstly, we properly divided the row index sets of the matrix by utilizing the theory of α-diagonally dominant matrices. Secondly, by selecting the progressive coefficients to construct the positive diagonal matrix, we gave some determination conditions of generalized strictly α-diagonally dominant matrices, and then some determination criteria for nonsingular H-matrices were obtained. A numerical example shows that these determination criteria are effective.

Key words: diagonally dominant matrix, α-diagonally dominant matrix, nonsingular H-matrix

中图分类号: 

  • O151.21