多部有向图的最大特征值

The Largest Eigenvalue of m-Partite Digraphs

本文讨论了多部有向图最大特征值的上界，并且给出了达到上界的充分且必要条件，从而推广了［2］，［3］和［4］的结论．

In this paper we dicuss the upper bound about the largest eigenvalue of m-partite digraphs,and ob-tain the contion on the upper boubd reacher,thus we extend the conquences in [2],[3] and [4].