The Signless Laplacian Spectral Radius of Tricyclic Graphs with κ Pendant Vertices  

作　　者：Jingming ZHANG Jiming GUO 

机构地区：[1]School of Mathematical Sciences,University of Electronic Science and Technology of China,Sichuan 611731,P.R.China [2]College of Mathematics and Computational Science,China University of Petroleum,Shandong 257061,P.R.China

出　　处：《Journal of Mathematical Research with Applications》2012年第3期281-287,共7页数学研究及应用（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Grant Nos.10871204;61170311);the Fundamental Research Funds for the Central Universities(Grant No.09CX04003A)

摘　　要：In this paper, we determine the unique graph with the largest signless Laplacian spectral radius among all the tricyclic graphs with n vertices and k pendant vertices.In this paper, we determine the unique graph with the largest signless Laplacian spectral radius among all the tricyclic graphs with n vertices and k pendant vertices.

关 键 词：signless Laplacian spectral radius tricyclic graph pendant vertex. 

分 类 号：O157.5[理学—数学] TH132.46[理学—基础数学]