Title
Bipartite edge-transitive bi- p -metacirculants
Abstract
A graph is a bi-Cayley graph over a group if the group acts semiregularly on the vertex set of the graph with two orbits. Let G be a non-abelian metacyclic p-group for an odd prime p. In this paper, we prove that if G is a Sylow p-subgroup in the full automorphism group Aut(Gamma) of a graph Gamma, then G is normal in Aut(Gamma). As an application, we classify the half-arc-transitive bipartite bi-Cayley graphs over G of valency less than 2p, while the case for valency 4 was given by Zhang and Zhou in 2019. It is further shown that there are no semisymmetric or arc-transitive bipartite bi-Cayley graphs over G of valency less than p.
Year
DOI
Venue
2019
10.26493/1855-3974.1801.eb1
ARS MATHEMATICA CONTEMPORANEA
Keywords
DocType
Volume
Bi-Cayley graph,half-arc-transitive graph,metacyclic group
Journal
17
Issue
ISSN
Citations 
2
1855-3966
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Yan-quan Feng135041.80
Yi Wang211.03