Formations of Finite Groups in Polynomial Time: the $\mathfrak{F}$-Hypercenter

Abstract

For a wide family of formations $\mathfrak{F}$ (which includes Baer-local formations) it is proved that the $\mathfrak{F}$-hypercenter of a permutation finite group can be computed in polynomial time. In particular, the algorithms for computing the $\mathfrak{F}$-hypercenter for the following classes of groups are suggested: hereditary local formations with the Shemetkov property, rank formations, formations of all quasinilpotent, Sylow tower, $p$-nilpotent, supersoluble, $w$-supersoluble and $SC$-groups. For some of these formations algorithms for the computation of the intersection of all maximal $\mathfrak{F}$-subgroups are suggested.