On the nullity of bipartite graphs

被引:68
|
作者
Fan, Yi-Zheng [1 ]
Qian, Ke-Shi [1 ]
机构
[1] Anhui Univ, Sch Math Sci, Hefei 230039, Peoples R China
关键词
Bipartite graphs; Nullity; Spectrum; TREES;
D O I
10.1016/j.laa.2009.01.007
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The nullity of a graph is defined to be the multiplicity of the eigen-value zero in the spectrum of the adjacency matrix of the graph. In this paper, we obtain the nullity set of bipartite graphs of order n, and characterize the bipartite graphs with nullity n - 4 and the regular bipartite graphs with nullity n - 6. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:2943 / 2949
页数:7
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