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.

Boolean lattices in finite alternating and symmetric groups

Lucchini A.;Moscatiello M.;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.
File in questo prodotto:
File Dimensione Formato  
boolean-lattices-in-finite-alternating-and-symmetric-groups.pdf

accesso aperto

Descrizione: Open access funding provided by Università degli Studi di Padova within the CRUI-CARE Agreement.
Tipologia: Published (publisher's version)
Licenza: Creative commons
Dimensione 761.77 kB
Formato Adobe PDF
761.77 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3371887
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
  • OpenAlex ND
social impact