Groups all proper quotient groups of which possess layer-Chernikov properties

1998 ◽  
Vol 50 (11) ◽  
pp. 1710-1718
Author(s):  
N. V. Kalashnikova
2003 ◽  
Vol 55 (4) ◽  
pp. 566-575
Author(s):  
L. A. Kurdachenko ◽  
P. Soules

2010 ◽  
Vol 38 (8) ◽  
pp. 2797-2807 ◽  
Author(s):  
Qinhai Zhang ◽  
Lili Li ◽  
Mingyao Xu

Author(s):  
Daniele Ettore Otera ◽  
Francesco G. Russo

Let𝔛be a class of groups. A group which does not belong to𝔛but all of whose proper quotient groups belong to𝔛is called just-non-𝔛group. The present note is a survey of recent results on the topic with a special attention to topological groups.


1967 ◽  
Vol 7 (1) ◽  
pp. 64-80 ◽  
Author(s):  
Warren Brisley

The purpose of this article is to present some results on varieties of metabelian p-groups, nilpotent of class c, with the prime p greater than c. After some preliminary lemmas in § 3, it is established in § 4, Theorem 3, that there is a simple basis for the laws of such a variety, and this basis is explicitly stated. This allows the description of the lattice of such varieties, and in § 5, Theorem 4, it is shown that each such variety has a two-generator member which generates it; this is established by the help of Theorem 5, which states that each critical group is a two-generator group, and Theorem 6, which gives explicitly the varieties generated by the proper subgroups, by the proper quotient groups, and by the proper factor groups of such a critical group.


2000 ◽  
Vol 52 (3) ◽  
pp. 400-406
Author(s):  
L. A. Kurdachenko ◽  
J. Otal

1971 ◽  
Vol 10 (4) ◽  
pp. 679-684
Author(s):  
A. I. Moskalenko

1973 ◽  
Vol 24 (1) ◽  
pp. 561-570 ◽  
Author(s):  
John H. Ying

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