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奇素数度的1-正则Cayley图
One-Regular Cayley Graphs of Valency Odd Prime
【摘要】 令Γ是一个图,如果Γ的自同构群Aut(Γ)作用在其弧集上是正则的,则称图Γ为1-正则图。在本文中,奇素数度1-正则Cayley图被完全分类,得到如下结论:一个奇素数度1-正则Cayley图要么是双正规的双Cayley图,要么在同构意义下是已知的6类无核Cayley图的正规覆盖:3个无限类、3个零散图,其中包括2个11度图以及1个23度图。
【Abstract】 A graphΓis called 1-regular if Aut(Γ)acts regularly on its arcs.In this paper,the 1-regular Cayley graphs of valency odd prime is classified completely,and the following conclusions are obtained:a 1-regular Cayley graph of valency odd prime is either a bi-normal bi-Cayley graph or a normal covering of the known six types of core-free ones up to isomorphism,which are three infinite types,three scattered graphs,including two graphs of valency 11 and a graph of valency 23.
【关键词】 1-正则;
Cayley图;
无核;
正规商;
奇素数度;
【Key words】 1-regular; Cayley graph; core-free; normal quotient; valency odd prime;
【Key words】 1-regular; Cayley graph; core-free; normal quotient; valency odd prime;
【基金】 国家自然科学基金(11461004);广西自然科学基金(2015GXNSFAA139001,2013GXNSFAA019018)
- 【文献出处】 广西师范大学学报(自然科学版) ,Journal of Guangxi Normal University(Natural Science Edition) , 编辑部邮箱 ,2019年02期
- 【分类号】O157.5
- 【下载频次】57