一类非负矩阵对的本原指数

The Exponent of a Class of Nonnegative Matrix Pairs

研究了一类特殊的双色有向图,它的未着色图中含有3n-2个顶点,包含一个(2n+1)-圈和一个n-圈的图,给出了本原条件和指数的上、下界,并对极图进行了刻划.

In this article,we study a type of special two-colored digraphs whose uncolored digraph has 3n-2 vertices and consists of one （2n＋1）-cycle and one n-cycle. We give some primitive conditions and the bound on the exponents. Finally,we give the characterizations of extremal two-colored digraphs.