Maximizing the spectral radius of bicyclic graphs with fixed girth

被引:5
|
作者
Zhai, Mingqing [1 ,2 ]
Wu, Yarong [1 ]
Shu, Jinlong [3 ]
机构
[1] E China Normal Univ, Dept Math, Shanghai 200241, Peoples R China
[2] Chuzhou Univ, Dept Math, Chuzhou 239012, Anhui, Peoples R China
[3] E China Normal Univ, Minist Educ, Key Lab Geog Informat Sci, Shanghai 200241, Peoples R China
基金
中国国家自然科学基金;
关键词
Bicyclic graph; Spectral radius; Girth;
D O I
10.1016/j.laa.2009.03.021
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let B(n, g) be the set of bicyclic graphs on n vertices with girth g. In this paper, we determine the unique graph with the maximal spectral radius among all graphs in B(n, g). Moreover, the maximal spectral radius is a decreasing function on g. (c) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:716 / 723
页数:8
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