数学物理学报

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G -函数与迭代阵谱半径的估计

黄廷祝; 李厚彪; 申淑谦   

  1. 电子科技大学应用数学学院 成都 610054
  • 收稿日期:2005-05-23 修回日期:2006-11-25 出版日期:2007-10-25 发布日期:2007-10-25
  • 通讯作者: 黄廷祝
  • 基金资助:
    教育部``新世纪优秀人才支持计划''(NCET-04-0893)资助

G-functions and Estimates of Spectral Radius of Iterative Matrices

Huang Tingzhu; Li Houbiao; Shen Shuqian
  

  1. School of Applied Mathematics, University of Electronic Science and Technology of China, Chengdu 610054
  • Received:2005-05-23 Revised:2006-11-25 Online:2007-10-25 Published:2007-10-25
  • Contact: Huang Tingzhu

摘要: 该文应用G -函数概念, 获得了迭代矩阵谱半径新的上、下界, 所得结果推广和改进了文献[1--6]中的相应结果.这些结果适合于更广泛的矩阵类, 数值结果也表明在相同的条件下这些新界优于文献[1--6]中的界.

关键词: 迭代矩阵, G -函数, 谱半径, 特征值

Abstract: In this paper, some new bounds for the spectral radius of iterative matrices are obtained, which generalize and improve the results in [1--6]. These results are suited to extended matrices. Numerical examples show that these new bounds are better than the earlier ones in [1--6] under same conditions.

Key words: Iterative matrix, G -function, Spectral radius, Eigenvalue

中图分类号: 

  • 65F10