Groups with Restrictions on Infinite Conjugacy Classes

被引:3
作者
De Falco, M. [1 ]
de Giovanni, F. [1 ]
Musella, C. [1 ]
Trabelsi, N. [2 ]
机构
[1] Univ Naples Federico II, Dipartimento Matemat & Applicaz, Complesso Univ Monte S Angelo Via Cintia, I-80126 Naples, Italy
[2] Univ Setif 1, Dept Math, Lab Fundamental & Numer Math, Setif 19000, Algeria
关键词
FC-group; FC-centre; centralizer of an element;
D O I
10.1007/s00009-017-0852-7
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
A group G is said to be an AFC-group if for each element x of G at least one of the indices vertical bar C-G(x) : < x > vertical bar and vertical bar G : C-G(x)vertical bar is finite. Groups with this property appear as a natural generalization of those with finite conjugacy classes, and the aim of this paper is to investigate the structure of AFC-groups, and in particular the behaviour of their FC-centre.
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页数:12
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