A conjecture on the algebraic connectivity of connected graphs with fixed girth

被引:33
作者
Guo, Ji-Ming [1 ,2 ]
机构
[1] China Univ Petr, Dept Appl Math, Dongying 257061, Shandong, Peoples R China
[2] Tongji Univ, Dept Appl Math, Shanghai 200092, Peoples R China
关键词
Laplacian matrix; Algebraic connectivity; Fiedler vector; Unicyclic graph; Characteristic polynomial;
D O I
10.1016/j.disc.2007.10.044
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we completely solve a conjecture on the minimum algebraic connectivity of connected graphs with fixed girth (see [S. Fallat, S. Kirkland, Extremizing algebraic connectivity Subject to graph theoretic constraints, Electron. J. Linear Algebra 3 (1998) 48-74]). (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:5702 / 5711
页数:10
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