On minimal degree of transitive permutation groups with stabiliser being a $2$-group

Abstract

The minimal degree of a permutation group $G$ is defined as the minimal number of non-fixed points of a non-trivial element of $G$. In this paper we show that if $G$ is a transitive permutation group of degree $n$ having no non-trivial normal $2$-subgroups such that the stabiliser of a point is a $2$-group, then the minimal degree of $G$ is at least $\frac{2}{3}n$. The proof depends on the classification of finite simple groups.

9 pages, this was part of the original submission arXiv:1909.05456, which is now split into two parts

References in corpus (1)

• On the number of fixed points of automorphisms of vertex-transitive graphs of bounded valency