摘要
介绍了块α-对角占优矩阵的概念,给出了两个块α-对角占优矩阵的充要条件,进而得到了块H-矩阵新的判定准则,并用数值例子说明了这些结论的有效性.
In this paper,the concept of block α-diagonally dominant is introduced and two sufficient and necessary conditions for block α-diagonally dominant matrices are given. A new practical criterion for block H-matrices is obtained.Finally,the effectiveness of the results is illustrated by numerical examples.
引文
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