• Kan fibrations which are homomorphisms of simplicial groups 

      Ruiz Salguero, Carlos Javier; Ruiz, Roberto
      In [3] C. Ruiz  gave a definition for "fibration" on the category Annb of Banach rings which is closely related to a functorGR : Annb→△ Gr which takes its values on the category of the simplicial groups. It was assumed ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.