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    • On the univalence of quasi- isometric mappings 

      Gervirtz, Julian
      Let X and X' be two Banach spaces and let G C B be open. John [1] defines a quasi-isometric mapping f: G → X´ to be an open (i.e., maps open sets onto open sets) local homeomorphism for which.
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.