On the norm of the derived‎ subgroups of all subgroups of a finite group

Document Type : Research Paper


1 LMAM and School of Mathematical Sciences, Peking University, Beijing, 100871, China.

2 Guangxi University

3 Chongqing University of Arts and Sciences


In this paper‎, ‎we give a complete proof of Theorem 4.1(ii) and a new‎ ‎elementary proof of Theorem 4.1(i) in [Li and Shen‎, ‎On the‎ ‎intersection of the normalizers of the derived subgroups of all‎
‎subgroups of a finite group‎, ‎ J‎. ‎Algebra, ‎323  (2010) 1349--1357]‎.
‎In addition‎, ‎we also give a generalization of Baer's Theorem‎.


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