Now showing items 1-2 of 2

    • Brown's representability theorem and branched coverings 

      Tejada, Débora María
      It is well known that Brown's Representability Theorem has many applications. The proof of the existence of a universal bundle for a topological group (see [4]) and the proof that any space can be approximated by CWcomplexes ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas. 
    • On the classification of 3--bridge links 

      Hilden, Hugh Michael; Montesinos, José María; Tejada, Débora María; Toro, Margarita María
      Using a new way to represent links, that we call a butterfly representation, we assign to each 3-bridge link diagram a sequence of six integers, collected as a triple (p/n,q/m,s/l), such that p≥ q≥ s≥2, 0 and lt;n≤ p, 0 ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.