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JOURNALS // Trudy Instituta Matematiki i Mekhaniki UrO RAN // Archive

Trudy Inst. Mat. i Mekh. UrO RAN, 2024 Volume 30, Number 4, Pages 55–63 (Mi timm2127)

On the influence of the $\mathfrak{F}$-hypercenter on the structure of finite multifactorized groups

S. V. Balychev, V. I. Murashka

Gomel State University named after Francisk Skorina

Abstract: The structure of a finite group having $t$ (normal, abnormal) subgroups with pairwise mutually coprime indices and $\mathfrak{F}$-hypercentrality constraints on pairwise intersections of these subgroups, where $\mathfrak{F}$ is a saturated formation, is described. As a consequence, new characterizations of $\Sigma_t$-closed, weakly $R_t$-closed, and $N_0$-closed formations of finite groups are established. The obtained results make a significant contribution to the solution of the question posed by W. Guo and A.N. Skiba in 2011.

Keywords: finite group, product of groups, saturated formation, $\mathfrak{F}$-hypercenter, $\mathfrak{F}$-central chief factor.

UDC: 512.542

MSC: 20D40, 20F17

Received: 02.05.2024
Revised: 04.06.2024
Accepted: 10.06.2024

DOI: 10.21538/0134-4889-2024-30-4-55-63



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