对一类含有三个圈的本原有向图的scrambling指数进行了研究.结合本原有向图scrambling指数的定义,通过分析图的特点,利用顶点的度和集合之间的关系,通过集合的运算给出了此类图的scrambling指数及其广义scrambling指数的具体值.
A special primitive digraph with three cycles are discussed. B.y the analysis of the characteristics of the digraph, combing with the definition of scrambling index of a primitive digraph, using the relationship between the vertex and the degree , the scrambling index and generalized scrambling indices of this special primitive digraphs are concluded through the set operations.