Now showing items 1-2 of 2

    • An axiomatic approach to finite means 

      Campión Arrastia, María Jesús Upna; Candeal, Juan Carlos; García Catalán, Olga Raquel Upna; Giarlotta, Alfio; Induráin Eraso, Esteban Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      In this paper we analyze the notion of a finite mean from an axiomatic point of view. We discuss several axiomatic alternatives, with the aim of establishing a universal definition reconciling all of them and exploring ...
    • The lattice of fitting classes which are right extensible by soluble groups 

      Iranzo, M.J.; Lafuente López, Julio Upna; Pérez Monasor, F. (Universidad Autónoma de Barcelona, Departamento de Matemáticas, 2005)   Artículo / Artikulua  OpenAccess
      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 ...