ON THE PRODUCT OF TWO π-DECOMPOSABLE SOLUBLE GROUPS

被引:6
作者
Kazarin, L. S. [1 ]
Martinez-Pastor, A. [2 ,3 ]
Perez-Ramos, M. D. [4 ]
机构
[1] Yaroslavl P Demidov State Univ, Dept Math, Yaroslavl 150000, Russia
[2] Univ Politecn Valencia, Dept Matemat Aplicada, Escuela Tecn Super Informat Aplicada, Valencia 46022, Spain
[3] Univ Politecn Valencia, IMPA UPV, Valencia 46022, Spain
[4] Univ Valencia, Dept Algebra, E-46100 Valencia, Spain
关键词
Products of groups; pi-decomposable groups; Hall subgroups; SUBGROUPS;
D O I
10.5565/PUBLMAT_53209_07
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let the group G = AB be a product of two pi-decomposable subgroups A = O-pi(A) x O-pi'(A) and B = O-pi(B) x O-pi'(B) where pi is a set of primes. The authors conjecture that O-pi(A)O-pi(B) = O-pi(B)O-pi(A) if pi is a set of odd primes. In this paper it is proved that the conjecture is true if A and B are soluble. A similar result with certain additional restrictions holds in the case 2 is an element of pi. Moreover, it is shown that the conjecture holds if O-pi'(A) and O-pi'(B) have coprime orders.
引用
收藏
页码:439 / 456
页数:18
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