• 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

    • 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)
    • Presentations of Schützenberger groups of minimal subshifts (with Jorge Almeida) ", Israel Journal of Mathematics 196 (2013)
    • Profinite groups associated to sofic shifts are free (with Benjamin Steinberg) ", Proceedings of the London Mathematical Society 102 (2011)

Research and Events


  • PhD Defense
    Fernando Lucatelli Nunes - Pseudomonads and Descent
    10:00 - Sala dos Capelos, Univ. Coimbra
    January 24, 2018
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Defended Theses

  • Descent theory of (T,V)-categories: global-descent and étale-descent
      Pier Giorgio Basile (September 2017)
      Maria Manuel Clementino
  • Representations of generalized quivers
      Artur Duarte Ferreira de Araújo (June 2017)
      Peter Gothen
  • On semisimple Hopf actions
      Deividi Ricardo Pansera (June 2017)
      Christian Edgar Lomp
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