讨论了一般符号模式矩阵的幂等性和广义逆。
I discuss idempotent, generalized inverses of general sign pattern matrix.
的符号模式矩阵类定义为符号模式为A的所有实矩阵的集合。
The sign pattern matrix class of a is defined by the set of all real matrixes those sign pattern is a.
符号模式矩阵最早起源于经济学中对某些问题的定性性质的研究。
The sign pattern matrix originated some issues in the economics of the qualitative nature of the study.
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