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

• 作 者: Jingming ZHANG Jiming GUO
• 机 构: SchoolofMathematicalSciences,CollegeofMathematicsandComputationalScience
• 出 处: 数学研究及应用：英文版
• 发表日期: 2012年3期
• 关键词: LAPLACE谱半径 顶点 LAPLACIAN谱半径 三环 吊坠 signless Laplacian spectral radius tricyclic gr
• 基金项目: Supported by the National Natural Science Foundation of China （Grant Nos. 10871204, 61170311） and the Fun- damental Research Funds for the Central Universities （Grant No. 09CX04003A）.

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.