فهرست نشریات علمی دسترسی آزاد ایران

We give a new proof of Glauberman's ZJ Theorem, in a form that clarifies the choices involved and offers more choices than classical treatments. In particular, we introduce two new ZJ-type subgroups of a $p$-group~$S$, that contain ZJr(S) and ZJo(S) respectively and can be strictly larger.