A note on groups whose proper subgroups are quasihamiltonian-by-finite

Autor: Francesco de Giovanni, Federica Saccomanno
Přispěvatelé: de Giovanni, Francesco, Saccomanno, Federica
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Popis: If $${\mathfrak {X}}$$ is a class of groups, a group is minimal non- $${\mathfrak {X}}$$ if it is not an $${\mathfrak {X}}$$ -group, but all its proper subgroups belong to $${\mathfrak {X}}$$ . The aim of this paper is to prove that for a periodic locally graded group the property of being minimal non-(quasihamiltonian-by-finite) and that of being minimal non-(abelian-by-finite) are equivalent. Recall here that a group G is called quasihamiltonian if $$XY=YX$$ for all subgroups X and Y of G.
Databáze: OpenAIRE