On a product of two formational tcc-subgroups

• Published in: Algebra and Discrete Mathematics
• Date: 2020
• Main Author: Trofimuk, A.
• Format: Article
• Language: English
• Published: Інститут прикладної математики і механіки НАН України 2020
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/188571
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: On a product of two formational tcc-subgroups / A. Trofimuk // Algebra and Discrete Mathematics. — 2020. — Vol. 30, № 2. — С. 282–289. — Бібліогр.: 15 назв. — англ.

A subgroup A of a group G is called tcc-subgroup in G, if there is a subgroup T of G such that G = AT and for any X ≤ A and Y ≤ T there exists an element u ∈ hX, Y i such that XYᵘ ≤ G. The notation H ≤ G means that H is a subgroup of a group G. In this paper we consider a group G = AB such that A a...