Given a group G and a subgroup H, we let $mathcal {O}_G(H)$ denote the lattice of subgroups of G containing H. This article provides a classification of the subgroups H of G such that $mathcal {O}_{G}(H)$ is Boolean of rank at least $3$ when G is a finite alternating or symmetric group. Besides some sporadic examples and some twisted versions, there are two different types of such lattices. One type arises by taking stabilisers of chains of regular partitions, and the other arises by taking stabilisers of chains of regular product structures. As an application, we prove in this case a conjecture on Boolean overgroup lattices related to the dual Ore's theorem and to a problem of Kenneth Brown.

Lucchini, A., Moscatiello, M., Palcoux, S., Spiga, P. (2020). Boolean lattices in finite alternating and symmetric groups. FORUM OF MATHEMATICS. SIGMA, 8 [10.1017/fms.2020.49].

Boolean lattices in finite alternating and symmetric groups

Spiga P.
2020

Abstract

Given a group G and a subgroup H, we let $mathcal {O}_G(H)$ denote the lattice of subgroups of G containing H. This article provides a classification of the subgroups H of G such that $mathcal {O}_{G}(H)$ is Boolean of rank at least $3$ when G is a finite alternating or symmetric group. Besides some sporadic examples and some twisted versions, there are two different types of such lattices. One type arises by taking stabilisers of chains of regular partitions, and the other arises by taking stabilisers of chains of regular product structures. As an application, we prove in this case a conjecture on Boolean overgroup lattices related to the dual Ore's theorem and to a problem of Kenneth Brown.
Articolo in rivista - Articolo scientifico
2020 Mathematics Subject Classification; 20B25
English
13-nov-2020
2020
8
e55
none
Lucchini, A., Moscatiello, M., Palcoux, S., Spiga, P. (2020). Boolean lattices in finite alternating and symmetric groups. FORUM OF MATHEMATICS. SIGMA, 8 [10.1017/fms.2020.49].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/295756
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