J
Jorge Almeida
Researcher at University of Porto
Publications - 244
Citations - 2919
Jorge Almeida is an academic researcher from University of Porto. The author has contributed to research in topics: Semigroup & Medicine. The author has an hindex of 25, co-authored 205 publications receiving 2718 citations. Previous affiliations of Jorge Almeida include Simon Fraser University & Polytechnic Institute of Leiria.
Papers
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Book
Finite Semigroups and Universal Algebra
TL;DR: In this paper, Finite universal algebra: elements of universal algebra order and topology finite algebras decidability, permutativity operators relating semigroups and monoids, whose regular D-classes are subsemigroups.
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Representation theory of finite semigroups, semigroup radicals and formal language theory
TL;DR: In this paper, the congruence associated to the direct sum of all irreducible representations of a finite semigroup over an arbitrary field is characterized, and applications are given to obtain many new results, as well as easier proofs of several results in the literature.
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A syntactical proof of locality of da
TL;DR: Using purely syntactical arguments, it is shown that every nontrivial pseudovariety of monoids contained in DO whose corresponding variety of languages is closed under unambiguous product, for instance DA, is local in the sense of Tilson.
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Profinite semigroups and applications
TL;DR: In this article, the authors introduce pseudovarieties of finite semigroups and show how they intervene in the most recent developments in the area of profinite semigroup theory.
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On the Decidability of Iterated Semidirect Products with Applications to Complexity
Jorge Almeida,Benjamin Steinberg +1 more
TL;DR: The notion of hyperdecidability has been introduced by the first author as a tool to prove decidability of semidirect products of pseudovarieties of semigroups as discussed by the authors.