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• 数学 • 上一篇    下一篇

非负矩阵谱半径与M矩阵最小特征值的估计

吕洪斌1,2, 杜宇辉2, 何甲兴1   

  1. 1. 吉林大学数学研究所, 长春 130012; 2. 北华大学数学系, 吉林省 吉林 132033
  • 收稿日期:2004-11-30 修回日期:1900-01-01 出版日期:2005-07-26
  • 通讯作者: 吕洪斌

Estimate for the Spectral Radius of a Nonnegative Matrices and the Least Eigenvalue of a M-matrices

LÜ Hong-bin1,2, DU Yu-hui2, HE Jia-xing1   

  1. 1. Institute of Mathematics, Jilin University, Changchun 130012, China; 2. Department of Mathematics, Beihua University, Jilin 132033, Jilin Province, China
  • Received:2004-11-30 Revised:1900-01-01 Online:2005-07-26
  • Contact: LÜ Hong-bin

摘要: 利用矩阵的有向图及有向图的1-path覆盖, 给出非负矩阵的谱半径与M矩阵最小特征 值上下界的若干新估计, 改进了已有的相应结果.

关键词: 非负矩阵, M矩阵, 谱半径, 特征值

Abstract: With the help of the directed graph and 1-path cover o f directed graph,we gave some new bounds for the spectral radius of a nonnegativ e matrices and the least eigenvalue of a M-matrices, so as to improve the know n corresponding results.

Key words: nonnegative matrices, M-matrices, spectral radius, eig envalue

中图分类号: 

  • O151.21