Factorizations of Almost Simple Groups With a Solvable Factor, and Cayley Graphs of Solvable Groups - Couverture souple

Li, Cai-Heng; Xia, Binzhou

 
9781470453831: Factorizations of Almost Simple Groups With a Solvable Factor, and Cayley Graphs of Solvable Groups

Synopsis

A characterization is given for the factorizations of almost simple groups with a solvable factor. It turns out that there are only several infinite families of these non-trivial factorizations, and an almost simple group with such a factorization cannot have socle exceptional Lie type or orthogonal of minus type. The characterization is then applied to study s-arc-transitive Cayley graphs of solvable groups, leading to a striking corollary that, except for cycles, a non-bipartite connected 3-arc-transitive Cayley graph of a finite solvable group is necessarily a normal cover of the Petersen graph or the Ho?man-Singleton graph.

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À propos de l'auteur

Cai-Heng Li, Southern University of Science and Technology, Guandong, China.

Binzhou Xia, The University of Melbourne, Parkville, Australia.

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