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Identificação

Identificação pessoal

Nome completo
Jorge Manuel Meneses Guimarães de Almeida

Identificadores de autor

Ciência ID
8E14-868F-F4DB
ORCID iD
0000-0002-3829-2382
Google Scholar ID
t_RFHdoAAAAJ
Researcher Id
B-8575-2015
Scopus Author Id
55932145800

Endereços de correio eletrónico

  • jalmeida@fc.up.pt (Profissional)

Domínios de atuação

  • Ciências Exatas - Matemática
Produções

Publicações

Artigo em revista
  1. Almeida, Jorge; Klíma, Ondrej; Kunc, Michal. "The omega-inequality problem for concatenation hierarchies of star-free languages". Forum Mathematicum 30 3 (2018): 663-679. http://dx.doi.org/10.1515/forum-2016-0028.
    10.1515/forum-2016-0028
  2. Jorge Almeida; Alfredo Costa. "Equidivisible pseudovarieties of semigroups". Publicationes Mathematicae Debrecen 90 3-4 (2017): 435-453. https://doi.org/10.5486%2Fpmd.2017.7634.
    10.5486/pmd.2017.7634
  3. Almeida, Jorge; Borlido, Célia. "Complete k-reducibility of pseudovarieties of the form DRH". International Journal of Algebra and Computation 27 02 (2017): 189-235. http://dx.doi.org/10.1142/s0218196717500096.
    10.1142/s0218196717500096
  4. Almeida, J.; Costa, J.C.; Zeitoun, M.; Almeida, Jorge; Costa, José Carlos; Zeitoun, Marc. "Reducibility of pointlike problems". Semigroup Forum 94 2 (2017): 325-335. http://www.scopus.com/inward/record.url?eid=2-s2.0-84949796526&partnerID=MN8TOARS.
    10.1007/s00233-015-9769-2
  5. Almeida, J.; Shahzamanian, M.H.. "A note on the finite basis and finite rank properties for pseudovarieties of semigroups". Semigroup Forum (2017): 1-4. http://www.scopus.com/inward/record.url?eid=2-s2.0-85038368496&partnerID=MN8TOARS.
    10.1007/s00233-017-9904-3
  6. Almeida, J.; Shahzamanian, M.H.; Steinberg, B.. "The pro-nilpotent group topology on a free group". Journal of Algebra 480 (2017): 332-345. http://www.scopus.com/inward/record.url?eid=2-s2.0-85015885518&partnerID=MN8TOARS.
    10.1016/j.jalgebra.2017.03.009
  7. Almeida, J.; Couceiro, M.; Waldhauser, T.. "On the topological semigroup of equational classes of finite functions under composition". Journal of Multiple-Valued Logic and Soft Computing 28 1 (2017): 5-28. http://www.scopus.com/inward/record.url?eid=2-s2.0-85006997129&partnerID=MN8TOARS.
  8. Jorge Almeida; Alfredo Costa. "A geometric interpretation of the Schützenberger group of a minimal subshift". Arkiv för Matematik 54 2 (2016): 243-275. https://doi.org/10.1007%2Fs11512-016-0233-7.
    10.1007/s11512-016-0233-7
  9. Almeida, J.; Klíma, O.. "Reducibility vs. definability for pseudovarieties of semigroups". International Journal of Algebra and Computation 26 7 (2016): 1483-1495. http://www.scopus.com/inward/record.url?eid=2-s2.0-84992724051&partnerID=MN8TOARS.
    10.1142/S0218196716500648
  10. Almeida, J.; Klíma, O.. "On the irreducibility of pseudovarieties of semigroups". Journal of Pure and Applied Algebra 220 4 (2016): 1517-1524. http://www.scopus.com/inward/record.url?eid=2-s2.0-84960225464&partnerID=MN8TOARS.
    10.1016/j.jpaa.2015.09.015
  11. Almeida, J.; Rodaro, E.. "Semisimple Synchronizing Automata and the Wedderburn-Artin Theory". International Journal of Foundations of Computer Science 27 2 (2016): 127-145. http://www.scopus.com/inward/record.url?eid=2-s2.0-84966283588&partnerID=MN8TOARS.
    10.1142/S0129054116400037
  12. Almeida, J.; Costa, J.C.; Zeitoun, M.; Almeida, Jorge; Costa, José Carlos; Zeitoun, Marc; Almeida, J; Costa, JC; Zeitoun, M. "McCammond's normal forms for free aperiodic semigroups revisited". LMS Journal of Computation and Mathematics 18 1 (2015): 130-147. http://www.scopus.com/inward/record.url?eid=2-s2.0-84994310816&partnerID=MN8TOARS.
    10.1112/S1461157014000448
  13. Almeida, J.; Costa, A.. "A note on pseudovarieties of completely regular semigroups". Bulletin of the Australian Mathematical Society 92 2 (2015): 233-237. http://www.scopus.com/inward/record.url?eid=2-s2.0-84940955723&partnerID=MN8TOARS.
    10.1017/S0004972715000532
  14. Almeida, J.; Cano, A.; Klíma, O.; Pin, J.-É.. "On fixed points of the lower set operator". International Journal of Algebra and Computation 25 1-2 (2015): 259-262. http://www.scopus.com/inward/record.url?eid=2-s2.0-84928613348&partnerID=MN8TOARS.
    10.1142/S021819671540010X
Livro
  1. Almeida, J.; Bartonová, J.; Klíma, O.; Kunc, M.. On decidability of intermediate levels of concatenation hierarchies. 2015.
    10.1007/978-3-319-21500-6_4

Outros

Outra produção
  1. Factoriality and the pin-reutenauer procedure. We consider implicit signatures over finite semigroups determined by sets of pseudonatural numbers. We prove that, under relatively simple hypotheses on a pseudovariety V of semigroups, the finitely generated free algebra for the largest such signature is closed under taking factors within the free pro-V semigroup on the same set of generators. Furthermore, we show that the natural analogue of the. 2016. Almeida, Jorge; Costa, José Carlos; Zeitoun, Marc. http://hdl.handle.net/1822/40818.
  2. A geometric interpretation of the Schützenberger group of a minimal subshift. The first author has associated in a natural way a profinite group to each irreducible subshift. The group in question was initially obtained as a maximal subgroup of a free profinite semigroup. In the case of minimal subshifts, the same group is shown in the present paper to also arise from geometric considerations involving the Rauzy graphs of the subshift. Indeed, the group is shown to be isomo. 2016. Almeida, Jorge; Costa, Alfredo. http://hdl.handle.net/10316/44425.
  3. A NOTE ON PSEUDOVARIETIES OF COMPLETELY REGULAR SEMIGROUPS. A paper of Almeida and Trotter [‘The pseudoidentity problem and reducibility for completely regular semigroups’, Bull. Aust. Math. Soc.63 (2001), 407–433] makes essential use of free profinite semigroupoids over profinite graphs with infinitely many vertices. It has since been shown that such structures must be handled with great care. In this note, it is verified that the required properties hold. 2015. Almeida, Jorge; Costa, Alfredo. http://hdl.handle.net/10316/43882.