摘要
利用矩阵指标集的k-级划分,根据α-链对角占优矩阵的性质给出非奇异H-矩阵的几个新的充分条件,改进和推广一些近期结果,并用数值例子说明结论的有效性.
By using k-partition of matrices index set, some new sufficient conditions for nonsingular H-matrices were given according to the properties of a-chain diagonally dominant matrices, which improved and generalized some recent result. Their effectiveness was illustrated with numerical examples.
出处
《兰州理工大学学报》
CAS
北大核心
2010年第1期143-145,共3页
Journal of Lanzhou University of Technology
基金
江西省教育厅科技项目(GJJ09361)
关键词
非奇H-矩阵
α-链对角占优矩阵
广义严格对角占优矩阵
非零元素链
不可约
nonsingular H-matrix
a-chain diagonally dominant matrix
generalized strictly diagonally dominant matrix
nonzero elements chain
irreducibility
