图的邻接谱、拉普拉斯谱已得到了广泛的研究,但关于图的距离谱的研究结果却很少。本文给出了距离谱半径的可达上下界为min i,j=1,2,…,n{√kikj}≤u(G)≤max i,j=1,2,…,n{√kikj}
The spectrum of adjacency and Laplacian matrices of graphs have been well researched,but we know less about distance spectral of graphs.This paper presents the upper and lower bounds of distance spectral radius: min i,j=1,2,…,n{√kikj}≤u(G)≤max i,j=1,2,…,n{√kikj}.