J4 ›› 2013, Vol. 51 ›› Issue (02): 207-211.

• 数学 • 上一篇    下一篇

局部α-双对角占优矩阵及其应用

邰志艳1, 李庆春2   

  1. 1. 吉林医药学院 数学教研室, 吉林 吉林 132013; 2. 北华大学 数学学院, 吉林 吉林 132013
  • 收稿日期:2012-07-03 出版日期:2013-03-26 发布日期:2013-03-27
  • 通讯作者: 李庆春 E-mail:liqingchun01@163.com

Local α-Double Diagonally Dominant Matricesand Their Application

TAI Zhiyan1, LI Qingchun2   

  1. 1. Department of Mathematics, Jilin Medical College, Jilin 132013, Jilin Province, China;2. College of Mathematics, Beihua University, Jilin 132013, Jilin Province, China
  • Received:2012-07-03 Online:2013-03-26 Published:2013-03-27
  • Contact: LI Qingchun E-mail:liqingchun01@163.com

摘要:

利用局部α-双对角占优矩阵的概念, 得到广义严格对角占优矩阵的一些新的充分条件, 推广并改进了对广义严格对角占优矩阵的判定方法.

关键词: 严格对角占优矩阵; 局部α双对角占优矩阵; 非零元素链

Abstract:

Based on the concept of local α-double diagonally dominant matrices, several new sufficient conditions to determine generalized strictly diagonlly dominant matrices were given and thus the corresponding results were improved and generalized.

Key words:  strictly diagonlly dominant matrix; local α-double diagonlly dominant matrices, nonzero elements chain

中图分类号: 

  • O151.21