| Let G be a digraph.T(G)denote the total digraph of G.In this paper,p(T(G))=1 for any total digraph T(G)is obtained.The bounds about the index of convergence havebeen got:If G is a primitive digraph,k(T)≤k(G)+1;If G is an oriented cyclic,then k(T)=2|V(G)|-1;If G is acyclic,then k(T)=2k(G)-1. |
