摘要
文章通过引进一类具有非零元素链的矩阵,利用α对角占优矩阵性质,给出了一个新的非奇H矩阵的充分条件,扩大了非奇H矩阵的判定范围.
In this paper, we improved some sufficient conditions for nonsingular H-matrix. Furthermore, we obtain another more generically sufficient condition for non- singular H-matrices by introducing a kind of matrix with a chain of non-zero elements.
出处
《应用数学与计算数学学报》
2009年第1期93-96,共4页
Communication on Applied Mathematics and Computation
关键词
非奇H矩阵
α对角占优矩阵
广义严格对角占优矩阵
非零元素链对角
占优矩阵
nonsingular H-matrix, α diagonally dominant matrix, generalized strictly diagonally dominant matrix, nonzero elements chain diagonally dominant matrix
