EDGE-TRANSITIVITY OF CAYLEY GRAPHS GENERATED BY TRANSPOSITIONS

被引:3
作者
Ganesan, Ashwin [1 ]
机构
[1] 53 Deonar House Deonar Village Rd, Mumbai 400088, Maharashtra, India
关键词
Cayley graphs; transpositions; automorphisms of graphs; edge transitive graphs; line graphs; Whitney's isomorphism theorem; AUTOMORPHISM-GROUPS;
D O I
10.7151/dmgt.1903
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let S be a set of transpositions generating the symmetric group S-n (n >= 5). The transposition graph of S is defined to be the graph with vertex set {1,, n}, and with vertices i and j being adjacent in T(S) whenever (i, j) is an element of S. In the present note, it is proved that two transposition graphs are isomorphic if and only if the corresponding two Cayley graphs are isomorphic. It is also proved that the transposition graph T(S) is edge-transitive if and only if the Cayley graph Cay(S-n, S) is edge-transitive.
引用
收藏
页码:1035 / 1042
页数:8
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