利用本原有向图的scrambling指数和广义scrambling指数的定义,从图论的角度刻画了一类迹非零的对称本原有向图的scrambling指数及其广义的scrambling指数的界.
By using the definition of the scrambling index and the generalized scrambling indices of primitive digraph, we investigate the bound for the scrambling index and the generalized scrambling indi- ces of symmetric primitive matrices by using graph theory.