吉首大学学报(自然科学版)2024,Vol.45Issue(3):1-8,8.DOI:10.13438/j.cnki.jdzk.2024.03.001
广义S-α2型块对角占优矩阵及其谱分析
Generalized S-α2 Type Block Diagonally Dominant Matrices and Its Spectrum
摘要
Abstract
A new judging criterion for a class of block diagonally dominant matrices is given by using the property of G-function and the technique of scaling and shrinking inequalities,and the inclusion field of the eigenvalues of the matrix is obtained.A numerical example is used to illustrate the validity and uni-versality of the new judging criterion.关键词
块H-矩阵/G-函数/特征值/广义S-α2型块对角占优矩阵Key words
block H-matrix/G-function/eigenvalue/generalized S-α2 block diagonally dominant matrix分类
数理科学引用本文复制引用
朱开心,庹清,黄琦..广义S-α2型块对角占优矩阵及其谱分析[J].吉首大学学报(自然科学版),2024,45(3):1-8,8.基金项目
国家自然科学基金资助项目(11861033) (11861033)
湖南省研究生科技创新项目(21C0365) (21C0365)
吉首大学校级科研项目(JDY23025) (JDY23025)