h(G,x)表示图G的伴随多项式,β2(G)表示h(G,x)的第二伴随最小负实根,探讨β2(T(1,b,c,d,1))的性质。
In this paper, let h(G,X) denote adjoining polynomial of graph G, and denote β2( G)the secondary minimum negative real roots of h( G,X), the character of β2(T(1, b,c,d,1)).