The Laplacian spectral radii of unicyclic and bicyclic graphs with n vertices and k pendant vertices  

作　　者：GUO JiMing Department of Applied Mathematics,China University of Petroleum,Dongying 257061,China 

出　　处：《Science China Mathematics》2010年第8期2135-2142,共8页中国科学：数学（英文版）

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

摘　　要：In this paper,we determine graphs with the largest Laplacian spectral radius among the unicyclic and the bicyclic graphs on n vertices with k pendant vertices,respectively.In this paper,we determine graphs with the largest Laplacian spectral radius among the unicyclic and the bicyclic graphs on n vertices with k pendant vertices,respectively.

关 键 词：LAPLACIAN matrix LAPLACIAN spectral RADIUS unicyclic GRAPH BICYCLIC GRAPH 

分 类 号：O157.5[理学—数学]