• Jorge Almeida

  • Research Area

    Finite Semigroups

  • Institution

    University of Porto

  • PhD

    Institution: The Pennsylvania State University
    Year: 1982

  • Main research publications

    • Iterated periodicity over finite aperiodic semigroups (with J. C. Costa, M. Zeitoun) ", Europ. J. Combin. 37 (2014)
    • Presentations of Schützenberger groups of minimal subshifts (with A. Costa) ", Israel J. Math. 196 (2013)
    • Rational codes and free profinite monoids (with B. Steinberg) ", J. London Math. Soc. (2) 79 (2009)
    • On the decidability of iterated semidirect products and applications to complexity (with B. Steinberg) ", Proc. London Math. Soc. 80 (2000)
    • Finite Semigroups and Universal Algebra , Series in Algebra, Vol. 3 , World Scientific, 1995
      ISBN: 981-02-1895-8
  • PhD Students

    • ongoing
    • ongoing
    • co-supervision with Pedro V. Silva, ongoing
    • ongoing
    • Pseudovarieties: Idempotent-Generated Semigroups and Representations of DA 2010
    • Profinite semigroups and symbolic dynamics 2007
    • ongoing
    • Contributions to the study of power operators on pseudovarieties of semigroups 2000
    • A study of the semidirect product of pseudovarieties 1998
    • Type II Theorem and hyperdecidability of pseudovarieties of groups 1997
    • Implicit operations on pseudovarieties of semigroups. Applications 1989
  • Adittional information

    Editor of Semigroup Forum
    Associate Editor of Portugaliæ Mathematica
    Vice-President of the Executive Board of the International Centre for Mathematics (CIM - member of ERCOM), 7/1996-6/2000

Research and Events


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

  • Statistical instability in chaotic dynamics
      Muhammad Ali Khan (March 2018)
      José Ferreira Alves
  • Profinite topologies on the free group
      Khadijeh Alibabaei (March 2018)
      Jorge Almeida
  •   Rui Manuel Tavares Pinto de Sá Pereira (January 2018)
      Evelina Shamarova
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