Automorphism group of the derangement graph

被引:0
作者
Deng, Yun-Ping [1 ]
Zhang, Xiao-Dong [1 ]
机构
[1] Shanghai Jiao Tong Univ, Dept Math, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
derangement graph; automorphism group; Cayley graph; symmetric group; CAYLEY-GRAPHS; INTERSECTING FAMILIES; THEOREM;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we prove that the full automorphism group of the derangement graph Gamma(n) (n >= 3) is equal to (R(S-n) x Inn(S-n)) x Z(2), where R(S-n) and Inn(S-n) are the right regular representation and the inner automorphism group of S-n respectively, and Z(2) = <phi > with the mapping phi : sigma(phi) = sigma(-1), (sic)sigma is an element of S-n. Moreover, all orbits on the edge set of Gamma(n) (n >= 3) are determined.
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页数:8
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