Cayley digraphs of finite simple groups with small out-valency

摘要

For a group G and a subset S of G which does not contain the identity of G, the Cayley digraph Cay(G, S) is called normal if R(G) is normal in Aut(T). In this paper, we investigate the normality of Cayley digraphs of finite simple groups with out-valency 2 and. We give several sufficient conditions for such Cayley digraphs to be normal. By using this result, we consider the digraphical regular representations of finite simple groups. [References: 16]