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The lattice of fitting classes which are right extensible by soluble groups
(Universidad Autónoma de Barcelona, Departamento de Matemáticas, 2005)
Artículo / Artikulua,
In this paper we study the set of fitting classes which are right extensible by soluble groups ordered by the inclusion relation. The consideration of the associated lattices gives rise to new fitting classes and it allows ...
Grupos primitivos con subgrupos maximales pequeños
(Universidad Autónoma de Barcelona, Departamento de Matemáticas, 1985)
Artículo / Artikulua,
Los retículos de las clases de Schunck normales y de las clases derivadas
(Real Sociedad Matemática EspañolaCSIC, 1979)
Artículo / Artikulua,
All groups to be considered are finite. The main result of this paper is the following: the normal Schunck classes compose a complete and distributive lattice antiisomorphic to the lattice composed by the derived classes. ...