Spectral characterization of the complete graph removing a path of small length

Spectral characterization of the complete graph removing a path of small length
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移除小长度路径的完整图的光谱表征

DOI:
10.1016/j.dam.2018.08.029
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发表时间:
2018-04
影响因子:
1.1
通讯作者:
W. Wang
W. Wang
中科院分区:
数学3区
文献类型:
--
作者:
L. Mao;S.M. Cioaba;W. Wang

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一个图G称为由它的谱决定的,如果任何一个与G具有相同谱的图都同构于G。设Kn <$P <$是从Kn去掉P <$的边得到的图,其中P <$是一条长为<$− 1的路,它是一个完全图Kn的子图。Cámara and Haemers(2014)证明了Kn <$P <$由它的邻接谱决定,对于每一个2≤ <$≤ n。在本文中,我们证明了对于7≤ ≤ 9,该猜想是正确的。
A graph G is said to be determined by its spectrum if any graph having the same spectrum as G is isomorphic to G. Let K n∖ P ℓ be the graph obtained from K n by removing edges of P ℓ, where P ℓ is a path of length ℓ− 1 which is a subgraph of a complete graph K n. Cámara and Haemers (2014) conjectured that K n∖ P ℓ is determined by its adjacency spectrum for every 2≤ ℓ≤ n. In this paper we show that the conjecture is true for 7≤ ℓ≤ 9.
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发表时间: 2008-06
影响因子: 1.1
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