Note on Laplacian energy of graphs

作者：Wang Hongzhuan; Hua Hongbo

来源：MATCH-Communications in Mathematical and in Computer Chemistry, 2008, 59(2): 373-380.

Let G be a graph with n vertices and m, edges. Denote by mu(1), mu(2), ... , mu(n) in the Laplacian eigenvalues of G. Recently, I. Gutman and B. Zhou [17] proposed an energy-like quantity, Laplacian energy, defined to be LE(G) (n)Sigma(i=1) vertical bar mu(i) -2m/n vertical bar and some bounds concerning this quantity have been obtained there. In this note, a few more novel bounds for LE(G) are presented.

• 出版日期2008
• 单位淮阴工学院