报告地点：行健楼学术活动室526
邀请人：许宝刚教授
Abstract: A graph on $2n$ is a bicirculant if it admits an automorphism that is a permutation with two cycles of length $n$. For example, the Petersen and Heawood graphs. Arc-transitive bicirculants of valencies three, four and five have previously been classified by various authors. In this talk I will discuss recent joint work with Alice Devillers and Wei Jin that characterises all arc-transitive bicirculants and provides a framework for their complete classification.