Now showing items 1-3 of 3

    • Monoid actions, their categorification and applications 

      Erdal, Mehmet Akif (Bilkent University, 2017-01)
      We study actions of monoids and monoidal categories, and their relations with (co)homology theories. We start by discussing actions of monoids via bi-actions. We show that there is a well-defined functorial reverse action ...
    • On real Enriques surfaces 

      Küçük, Özgül (Bilkent University, 1997)
    • On smooth manifolds with the homotopy type of a homology sphere 

      Erdal, M. A. (Elsevier, 2017-11-22)
      In this paper we study M(X), the set of diffeomorphism classes of smooth manifolds with the simple homotopy type of X, via a map Ψ from M(X) into the quotient of K(X)=[X,BSO] by the action of the group of homotopy classes ...