A class of finite groups with abelian 2-Sylow subgroups By CHIH-HAN SAH
Remark:
1、An element of a group which conjugate to its inverse is called a real element. If $G$ has any real elements other than $1$, then $G$ must necessarily have even order.
SRE实战 互联网时代守护先锋，助力企业售后服务体系运筹帷幄！一键直达领取阿里云限量特价优惠。2、It is known that $G$ is 2-closed if and only if $G$ contains no real element of odd prime order.
更多精彩
