A note on Hall normally embedded subgroups of finite groups
Abstract
Let GG be a finite group. A subgroup HH of GG is called Hall normally embedded in GG if HH is a Hall subgroup of the normal closure HGHG. In this paper, we fix a subgroup DD of Sylow subgroup PP of GG with 1<|D|<|P|1<|D|<|P| and study the structure of GG under the assumption that all subgroups HH of PP with |H|=|D||H|=|D| are Hall normally embedded in GG.
Communicated by Mark L. Lewis