相关基金:This work is supported by NSFC (No. 11271301, No. 11471055, No. 11661031), Scientific Research Foundation of Sichuan Provincial Education Department (No. 14ZA0314, No. 15ZA0181) and the Scientific Research Foundation of CUIT (No. J201418).
Finite groups whose non-normal subgroups are conjugate was classified by Brandl in 1995. In this paper, a new elementary proof of the classification is given.