广义对角占优矩阵判定的几个充分条件
2013-07-16肖荣周积团
肖荣,周积团
广义对角占优矩阵判定的几个充分条件
肖荣,周积团
(五邑大学 数学与计算科学学院,广东 江门 529020)
研究了判定广义对角占优矩阵的几个充分条件,推广和改进了相关已有结果,并用两个例子说明判定方法的有效性.
广义对角占优矩阵;H-矩阵;不可约矩阵;主子阵
1 引言及定义
记
2 主要结果与证明
下面分2种情况讨论:
3 数值算例
[1]BRU R, CORRAL C I. GIMENEZ, et al. Classes of general H-matrices [J]. Linear Algebra Appl, 2008, 429: 2358-2366.
[4]BERMAN A, PLEMMONS R J. Nonnegative matrices in the mathematical sciences [M]. Philadelphia: SIAM press, 1994.
[6] 逄明贤. 广义对角占优矩阵的判定及应用[J]. 数学年刊,1985, 6A(3): 323-330.
[责任编辑:熊玉涛]
Some Sufficient Conditions for Determining Generalized Diagonally Dominant Matrices
XIAORong, ZHOUJi-tuan
(School of Mathematics and Computational Science, Wuyi University, Jiangmen 529020, China)
In this paper, we study some sufficient conditions for a class of generalized diagonally dominant matrices, which extend and improve some related known results. In addition, we give two examples to illustrate the effectiveness of these criteria.
generalized diagonally dominant matrix; H-matrix; irreducible matrix; submatrix
1006-7302(2013)04-0006-04
O151. 21
A
2013-04-15
国家自然科学基金资助项目(No.11201092,No.11101204)
肖荣(1986—),男,湖南耒阳人,在读硕士生,研究方向为矩阵理论与矩阵计算;周积团,教授,博士,硕士生导师,通信作者,研究方向为矩阵理论与矩阵计算.