• Alfredo Costa

  • Research Area

    (Pro)finite semigroups and symbolic dynamics

  • Institution

    University of Coimbra

  • PhD

    Institution: the University of Porto
    Year: 2007

  • Main research publications

    • On the group of a rational maximal bifix code (with Jorge Almeida, Revekka Kyriakoglou, Dominique Perrin) , Forum Mathematicum 32 (2019)
    • A categorical invariant of flow equivalence of shifts (with Benjamin Steinberg) , Ergodic Theory and Dynamical Systems 36 (2016)
    • A geometric interpretation of the Schützenberger group of a minimal subshift (with Jorge Almeida) , Arkiv för Matematik 54 (2016)
    • Some operators that preserve the locality of a pseudovariety of semigroups (with Ana Escada) , International Journal of Algebra and Computation 23 (2013)
    • Profinite groups associated to sofic shifts are free (with Benjamin Steinberg) , Proceedings of the London Mathematical Society 102 (2011)
  • PhD Students

    • Herman Goulet-Ouellet Schützenberger groups of minimal shift spaces co-supervision with Jorge Almeida, 2022

Research and Events


  • There is no information available on this topic.
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Defended Theses

  • Some aspects of descent theory and applications
      Rui Rodrigues de Abreu Fernandes Prezado (January 2024)
      Maria Manuel Clementino
      Fernando Lucatelli Nunes
  • Comparability between different systems: star-shaped and convex transform orders
      Beatriz Ferreira Santos (December 2023)
      Paulo Eduardo Oliveira
      Idir Arab
  • On Lax Idempotent Monads in Topology
      Carlos Miguel Alves Fitas (December 2023)
      Maria Manuel Clementino
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