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Álgebra e Computação
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Artigos em Revistas Internacionais
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Artigos em Revistas Internacionais
Fountain, John;
Gomes, Gracinda M. S.
; Gould, Victoria (1999)
Enlargements, semiabundancy and unipotent monoids
Comm. Algebra: 27 (2), 595-614.
Bentz, Wolfram
; Bulman-Fleming, Sydney (1999)
On Equalizer-flat Acts
Semigroup Forum: 58, 5 – 16.
Gomes, Gracinda M. S.
; Gould, Victoria (1999)
Proper weakly left ample semigroups
Internat. J. Algebra Comput.: 9 (6), 721-739.
Bentz, Wolfram
(1999)
Topological Implications in Varieties
Algebra Universalis: 42, 9 – 16.
Galvão, M. Luísa
; Smith, Patrick F. (1998)
Chain Conditions in Modular Lattices
Colloquium Mathematicum: 76 (1), 85-98.
Bordalo, Gabriela Hauser
; Rodrigues, Elias (1998)
Complements in modular and semimodular lattices
Portugaliae Math.: 55 (3), 373-380.
Santa-Clara, Catarina
(1998)
Extending modules with injective or semisimple summands
J. Pure Applied Algebra: 127, 193-203.
Berman, Joel;
Bordalo, Gabriela Hauser
(1998)
Finite distributive lattices and doubly irreducible elements
Discrete Mathematics: 178, 237-243.
Gomes, Gracinda M. S.
; Szendrei, Mária B. (1998)
Idempotent pure extensions of inverse semigroups via quivers
J. Pure Applied Algebra: 127, 15-38.
Santa-Clara, Catarina
; Silva, F. C. (1998)
On infinite Goldie dimension
J. Algebra: 205, 617-625.
Gouveia, M. J.
; (previously Saramago, M. J.) (1998)
Optimal natural dualities for some quasivarieties of distributive double p-algebras
Acta Math. Univ. Comenianae: 67, 249-272.
Gomes, Gracinda M. S.
; Howie, John M. (1998)
Semigroups with zero whose idempotents form a subsemigroup
Proc. Royal Soc. Edinburgh: 128A, 265-281.
Bordalo, Gabriela Hauser
; Silva, Ilda P. (1997)
A characterization of finite modular pseudocomplemented lattices
Discussiones Mathematicae: 17, 113-122.
Branco, Mário J. J.
(1997)
The Kernel Category and Variants of the Concatenation Product
Internat. J. Algebra Comput.: 7, 487-509.
Gomes, Gracinda M. S.
; Howie, John M. (1996)
A P-theorem for inverse semigroups with zero
Portugaliae Math.: 53 (3), 257-278.
Santa-Clara, Catarina
; Smith, Patrick F. (1996)
Extending modules which are direct sums of injective modules and semisimple modules
Comm. Algebra: 24 (11), 3641-3651.
Bordalo, Gabriela Hauser
; Monjardet, B. (1996)
Reducible classes of finite lattices
Order: 13, 379-390.
Gomes, Gracinda M. S.
; Howie, John M. (1995)
Idempotent endomorphisms of an independence algebra of finite rank
Proc. Edinb. Math. Soc.: 38, 107-116.
Branco, Mário J. J.
(1994)
On the Pin-Thérien Expansion of Idempotent Monoids
Semigroup Forum: 49, 329-334.
Fountain, John;
Gomes, Gracinda M. S.
(1994)
Proper left type-A covers
Portugaliae Math.: 51 (4), 305-319.
Bordalo, Gabriela Hauser
; Priestley, H. A. (1994)
Rees congruences in lattice-ordered algebras
Publ. Math. Debrecen: 49, 355-364.
Bordalo, Gabriela Hauser
; Priestley, H. A. (1994)
Series-Parallel posets and relative Ockham lattices
Order: 11, 281-305.
Gomes, Gracinda M. S.
(1993)
A characterisation of the group congruences on a semigroup
Semigroup Forum: 46, 48-53.
Fountain, J.B.;
Gomes, Gracinda M. S.
(1993)
Proper left type-A monoids revisited
Glasgow Math. J.: 35, 293-306.
Gomes, Gracinda M. S.
(1992)
Group congruences on eventually inverse semigroup
Portugal. Math.: 49 (4), 417-428.
Fountain, J.B.;
Gomes, Gracinda M. S.
(1992)
Left proper E-dense monoids
J. Pure Appl. Algebra: 80, 1-27.
Gomes, Gracinda M. S.
; Howie, J.M. (1992)
On the ranks of certain semigroups of order-preserving transformations
Semigroup Forum: 45, 272-282.
Fountain, J.B.;
Gomes, Gracinda M. S.
(1990)
The Szendrei expansion of a semigroup
Mathematika: 37, 251-260.
Gomes, Gracinda M. S.
(1988)
Orthodox congruences on regular semigroups
Semigroup Forum: 37, 149-166.
Gomes, Gracinda M. S.
; Howie, J.M. (1987)
Nilpotents in finite symmetric inverse semigroups
Proc. Edinburgh Math. Soc.: 30, 383-395.
Gomes, Gracinda M. S.
; Howie, J.M. (1987)
On the ranks of certain finite semigroups of transformations
Math. Proc. Cambridge Philos. Soc.: 101, 395-403.
Gomes, Gracinda M. S.
(1986)
Some results on congruences on R-unipotent semigroups
Semigroup Forum: 33, 175-185.
Gomes, Gracinda M. S.
(1986)
The lattice of R-unipotent congruences on a regular semigroup
Semigroup Forum: 33, 159-173.
Gomes, Gracinda M. S.
(1985)
R-unipotent congruences on regular semigroups
Semigroup Forum: 31, 265-280.
Gomes, Gracinda M. S.
(1983)
On left quasinormal orthodox semigroups
Proc. Roy. Soc. Edinburgh: 95A, 59-71.
Blyth, T. S.;
Gomes, Gracinda M. S.
(1983)
On the compatibility of the natural order on a regular semigroup
Proc. Roy. Soc. Edinburgh: 94A, 79-84.
Galvão, M. Luísa
(1978)
Ideals in the semiring N
Portugal. Math.: 37, no 1-2, 113-117.
Galvão, M. Luísa
(1978)
Les relations de congruence sur le demianneau N des nombres naturels
Period. Math. Hungar.: 9, no 3, 231-235.
Almeida Costa, A.;
Galvão, M. Luísa
(1973)
Sur les demianneaux réticulés
Rev. Fac. Ciências de Lisboa: 2ª Série A, Vol XIV, Fasc 2º, 195-208.
Almeida Costa, A.;
Galvão, M. Luísa
(1972)
Sur les relations de invariance dans les treillis
Rev. Fac. Ciências de Lisboa: 2ª Série A, Vol XIV, Fasc. 1º, 45-60.
Galvão, M. Luísa
(1960)
Sur les ideaux réguliers d'un semianneau
Rev. Fac. Ciências de Lisboa: 2ª Série A, Vol VIII, Fasc. 1º, 169-173.
Galvão, M. Luísa
(1959)
On the theory of residuals
Rev. Fac. de Ciências de Lisboa: 2ª Série A, Vol VII, 283-300.
Araújo, João
;
Bentz, Wolfram
;
Gomes, Gracinda M. S.
()
Congruences on Direct Products of Transformation and Matrix Monoids
Semigroup Forum: (submitted).
Livros
Gomes, Gracinda M. S.
(2011)
Anéis e Corpos - uma introdução
Textos de Matemática, DM-FCUL: 22.
Gillibert, Pierre
; Wehrung, F. (2011)
From objects to diagrams for ranges of functors
Lecture Notes in Mathematics Springer Berlin Heidelberg: 2029, ISBN: 978-3-642-21773-9.
Artigos ou Capítulos em Livros Editados
Araújo, João
; Cameron, Peter (2015)
Permutation groups and transformation semigroups: results and problems
London Mathematical Society Lecture Note Series: 422, 128-141.
Claudio, A. P.; Fonseca, S. ;
Sequeira, Luís
; Silva, I. P. (2015)
Shannon Switching Game and Directed Variants
Dynamics, Games and Science. CIM Series in Mathematical Sciences: 1, 187-199.
Couceiro, Miguel;
Lehtonen, Erkko
; Schölzel, Karsten (2013)
Sur des classes de fonctions à seuil caractérisables par des contraintes relationnelles — On classes of threshold functions characterizable by relational constraints
Actes des 22èmes rencontres francophones sur la Logique Floue et ses Applications (LFA 2013), Université de Reims Champagne-Ardenne, 145-152.
Lehtonen, Erkko
; Szendrei, Ágnes (2012)
Partial orders induced by quasilinear clones
Proceedings of the Salzburg Conference 2011 (AAA81), Verlag Johannes Heyn, Klagenfurt, 51-84.
Couceiro, Miguel;
Lehtonen, Erkko
; Marichal, Jean-Luc; Waldhauser, Tamás (2011)
An algorithm for producing median formulas for Boolean functions
Proceedings of the Reed–Muller 2011 Workshop, Tampere International Center for Signal Processing (TICSP), 49-54.
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CEMAT
- Center for Computational and Stochastic Mathematics
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Faculdade de Ciências
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