摘要
给出了块拟对角占优矩阵的几个新的充分条件。
Some new sufficient conditions for block quasi-diagonally dominant matrices are given,and some theorems are established.Then using these theorems,the nonsingularity and distribution of eigenvalue of block α double geometric mean diagonally dominant matrix is studied.
出处
《延安大学学报（自然科学版）》
2002年第3期18-21,共4页
Journal of Yan'an University：Natural Science Edition
基金
云南省自然科学基金资助项目 (2 0 0 0 A0 0 0 1--1M)
云南省教育厅科研基金资助项目 (991112 6 )
