On Baer's Theorem and Its Generalizations

被引:1
|
作者
Taghavi, Yasaman [1 ]
Kayvanfar, Saeed [1 ]
Parvizi, Mohsen [1 ]
机构
[1] Ferdowsi Univ Mashhad, Dept Pure Math, POB 1159, Mashhad 91775, Razavi Khorasan, Iran
关键词
Schur's theorem; Baer's theorem; hypercenter; nilpotent group; SCHUR;
D O I
10.1007/s00009-021-01887-2
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A well known theorem of R. Baer states that if G is a group and G/Z(n)(G) is finite, then gamma(n+1)(G) is finite. In this article, we extend this theorem for groups G that have subgroups A of Aut(G) such that A/Inn(G) is finitely generated or is of finite special rank. Furthermore, some new upper bounds for vertical bar gamma(n+1)(G)vertical bar and vertical bar gamma(n+1)(G, A)vertical bar are presented.
引用
收藏
页数:20
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