摘要
借助行严格对角占M-优矩阵的逆矩阵元素的上界序列,得到了‖A-1‖∞收敛的递减上界序列,A的最小特征值q(A)收敛的递增的下界序列.从理论上证明了本文结果的优越性,通过数值例子进一步说明了可行性和有效性.
By using the upper sequence of the elements of inverse matrix of strictly diagonally dominant Mmatrix,a decreasing sequence of upper bounds for convergence of ‖ A- 1‖∞was obtained,the minimum eigenvalue q( A) of A the increasing sequence of lower bounds for convergence. Furthermore,the superiority of the results was theoretically proved. A numerical example feasibility and effectiveness were illustrated.
出处
《吉林师范大学学报(自然科学版)》
2015年第4期60-63,共4页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然科学基金项目(11361074)
云南省教育厅科学研究基金项目(2013Y585)
文山学院重点学科数学建设项目(12WSXK01)
关键词
对角占优矩阵
M-矩阵
矩阵的无穷大范数
上界
最小特征值
Diagonal dominance matrix
M-matrix
Infinity norms of matrices
Upper bound
Minimum eigenvalue