一类Z-矩阵的置换结构

Permutation Structures on a Class of Z-matrices

利用图论方法并结合 Z-矩阵的本身特点 ,讨论了对角元全为零的 Z-矩阵的伴随有向图性质 ,并由此给出了对角元全为零的非奇异

In this paper, by the theory of graph method and Z matrices properties, we study the associated directed graph of Z matrix with zero diagonal entry, and the permutation structures of a class of Z matrices.