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矩阵对角占优性的推广及应用

李庆春1,2 ,张树功1   

  1. 1.吉林大学数学研究所,长春130012;2.北华大学理学院,吉林省吉林132013
  • 收稿日期:2005-01-07 修回日期:1900-01-01 出版日期:2005-09-26 发布日期:2005-09-26
  • 通讯作者: 张树功

Generalization and Application on Diagonal Dominance of Matrices

LI Qing-chun1,2 ,ZHAGN Shu-gong1   

  1. 1.Institute of Mathematics,Jilin University,Changchun 130012,China;2.College of Science,Beihua University,Jilin 132013, Jilin Province, China
  • Received:2005-01-07 Revised:1900-01-01 Online:2005-09-26 Published:2005-09-26
  • Contact: ZHAGN Shu-gong

摘要: 通过引进局部α双对角占优矩阵的概念,给出广义严格对角占优矩阵的若干充要条件和充分条件,从而给出M矩阵的等价表征和判定条件,推广和改进了已有的相应结果,作为应用给出一个新矩阵的谱包含域.

关键词: 广义严格对角占优, α双对角占优, 充要条件

Abstract: The concept of local α-bi-diagonal dominant matrix is introduced and some necessary and sufficient conditions are given for identifying generalized strict diagonal dominant matrix,thus the corresponding known results are improved and generalized.As an application,we obtain a new distribution theorem about the eigenvalue.

Key words: generalized strict diagonal dominance, α-bi-diagonal dominance, necessary and sufficient condition

中图分类号: 

  • O151.21