局部对角占优矩阵的一个性质

A Property of Local Diagonally Dominant Matrix

引进了局部(α,β,γ)-对角占优矩阵的相关概念,在不可约局部(α,β,γ)-对角占优矩阵的条件下,获得了非奇异H-矩阵及非奇异M-矩阵的实用判别准则,推广了已有的相关结果。

The relative concepts of local（α,β,γ）-diagonally dominant matrix is introduced in this paper,under the conditions of irreducible local（α,β,γ）-diagonally dominance,practical criterions of nonsingular H-matrix and nonsingular M-matrix are obtained,extending the existed results.