Graphs determined by their generalized characteristic polynomials
Graphs determined by their generalized characteristic polynomials
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由其广义特征多项式确定的图
DOI:
10.1016/j.laa.2010.11.024
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发表时间:
2011-03
影响因子:
1.1
通讯作者:
Xu, Zongben
中科院分区:
文献类型:
--
作者:
Wang, Wei;Li, Feng;Lu, Hongliang;Xu, Zongben
For a given graph G with (0,1)-adjacency matrix AG, the generalized characteristic polynomial of G is defined to be ϕG=ϕG(λ,t)=det(λI-(AG-tDG)), where I is the identity matrix and DGis the diagonal degree matrix of G. In this paper, we are mainly concerned with the problem of characterizing a given graph G by its generalized characteristic polynomial ϕG. We show that graphs with the same generalized characteristic polynomials have the same degree sequence, based on which, a unified approach is proposed to show that some families of graphs are characterized by ϕG. We also provide a method for constructing graphs with the same generalized characteristic polynomial, by using GM-switching.
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影响因子:
1.1
作者:
S. Butler
通讯作者:
S. Butler
DOI:
10.1016/j.camwa.2009.07.028
发表时间:
2009-11
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
Yuanping Zhang;Xiaogang Liu;Xuerong Yong
通讯作者:
Yuanping Zhang;Xiaogang Liu;Xuerong Yong
DOI:
10.1007/978-1-4613-0163-9
发表时间:
2001-04
期刊:
--
影响因子:
--
作者:
C. D. Godsil;G. Royle
通讯作者:
C. D. Godsil;G. Royle
DOI:
10.46298/dmtcs.456
发表时间:
2009-12
期刊:
Discret. Math. Theor. Comput. Sci.
影响因子:
--
作者:
Romain Boulet
通讯作者:
Romain Boulet
DOI:
10.1016/j.disc.2010.01.021
发表时间:
2010-07
期刊:
Discret. Math.
影响因子:
--
作者:
Jianfeng Wang;Qiongxiang Huang;Francesco Belardo;E. M. L. Marzi
通讯作者:
Jianfeng Wang;Qiongxiang Huang;Francesco Belardo;E. M. L. Marzi