运用n阶非负矩阵B=(bij)≥0的第二大特征值的界的结果,研究了n阶赋权图G的邻接矩阵在行和相等时最大特征值的值和第二大特征值θ2(A(G))以及最小的特征值θn(A(G))的界.
Using the second largest modulus of the eigenvalues of B = ( bij )≥ 0, the authors obtain the bound of the second largest of the eigenvalues θ2 (A (G) ) and the bound of the minimum eigenvalues of θn ( A ( G ) ) of weighted graph G.