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Papers in International Journals

Araújo, João; Cameron, P. J. (2019) Primitive groups, road closures, and idempotent generation . (submitted).
Araújo, João; Kinyon, M.; R. Padmanabhan (2019) A 2-base for inverse semigroups. (submitted).
Araújo, João; Kinyon, M.; Vigário, Edgar (2019) Short equational bases for MV-Algebras, commutative BCK-Algebras and LBCK-algebras. (submitted).
Araújo, João; Bentz, Wolfram; Cameron, P. J. (2018) Orbits of Primitive k-Homogenous Groups on (n-k)-Partitions with Applications to Semigroups . Transactions of the American Mathematical Society.
Araújo, João; Kinyon, M. (2018) Decidability and Independence of Conjugacy Problems in Finitely Presented Monoids . Theoretical Computer Science.
Araújo, João; Gomes, Gracinda M. S.; Bentz, Wolfram (2018) Congruences on direct products of transformation and matrix monoids. Semigroup Forum.
Soares, Filipa; Silva, Pedro V.; Volkov, Mikhail V. (2018) Local finiteness for Green's relations in semigroup varieties. Communications in Algebra.
Araújo, João; Bentz, Wolfram; Janusz Konieczny (2017) Directed graphs of inner translations of semigroups. Semigroup Forum: 94(3), 650-673.
Branco, Mário J. J.; Gomes, Gracinda M. S.; Silva, Pedro V.  (2017) Takahasi semigroups. Forum Mathematicum: 29(5), 1145-1161.
Araújo, João; Cameron, P. J.; Hulpke, A.; Lopes,P. (2017) Imprimitive Permutations in Primitive Groups . Journal of Algebra: 486, 396-416.
Gomes, Gracinda M. S.; Branco, Mário J. J.; Silva, Pedro V. (2017) On the semigroup rank of a group. 2622
Araújo, João; Bentz, Wolfram; Janusz Konieczny; Joy Morris (2017) Automorphism Groups of Circulant Digraphs with Applications to Semigroup Theory. Combinatorica, 1-28.
Araújo, João; Janusz Konieczny; António Malheiro (2017) Four Notions of Conjugacy for Abstract Semigroups . Proceedings of the Royal Academy of the Edinbourgh Mathematical Society: 147 A, 1169-1214.
Araújo, João; Peter J Cameron; Benjamin Steinberg (2017) Between primitive and $2$-transitive: Synchronization and its friends . European Mathematical Society Surveys: 4:2, 101-184.
Araújo, João; Cameron, Peter (2016) Two Generalizations of Homogeneity in Groups with Applications to Regular Semigroups . Trans. Amer. Math. Soc.: 368, 1159--1188.
André, Jorge M.; Araújo, João; Cameron, Peter (2016) The classification of partition homogeneous groups with applications to semigroup theory. Journal of Algebra: 452, 288--310.
Burillo, José; Matucci, Francesco; Ventura, Enric (2016) The Conjugacy Problem in Extensions of Thompson's group F. Israel Journal of Mathematics: 216(1), 15-59.
Araújo, João; Bentz, Wolfram; Cameron, P. J.; Gordon Royle; Artur Schaefer (2016) Primitive Groups, Graph Endomorphisms and Synchronization. Proceedings of the London Mathematical Society: 113, 829--867.
Bleak, Collin; Matucci, Francesco; Neunhöffer, Max  (2016) Embeddings into Thompson's group V and coCF groups. Journal of the London Mathematical Society: 94(2), 583-597.
Martinez-Perez, Conchita; Matucci, Francesco; Nucinkis, Brita (2016) Cohomological finiteness conditions and centralisers in generalisations of Thompson's group V. Forum Mathematicum : 28(5), 909-921.
Soares, Filipa; Silva, Pedro V. (2016) Howson's Property for Semidirect Products of Semilattices by Groups. Communications in Algebra: 44, 2482-2494.
Belk, James; Matucci, Francesco (2016) Röver’s simple group is of type F_\infty. Publicacions Matematiques: 60(2), 501-524.
A. Drapal; Kinyon, M. (2015) Buchsteiner loops: associators and constructions. Algebra and its Applications: 14(4), 1550050.
Lehtonen, Erkko (2015) On functions with a unique identification minor. Order.
Couceiro, Miguel; Lehtonen, Erkko; Schölzel, Karsten (2015) Hypomorphic Sperner systems and non-reconstructible functions. Order: 32, 255–292.
Kinyon, M.; J. Leech; J. Pita Costa (2015) Distributivity in skew lattices. Semigroup Forum: 91, 378-400.
Couceiro, Miguel; Lehtonen, Erkko; Schölzel, Karsten (2015) Set-reconstructibility of Post classes. Discrete Applied Mathematics: 187, 12–18.
Araújo, João; Bentz, Wolfram; Mitchell, James D.; Schneider, Csaba (2015) The rank of the semigroup of transformations stabilising a partition of a finite set.  Math. Proc. Cambridge Philos. Soc.: 159, 339-353.
R. Almeida; Teixeira, Alberto (2015) On the convergence of a predictor-corrector variant algorithm. TOP: 23(2), 401 - 418.
Craig, A.; Gouveia, M. J.; Haviar, M. (2015) TiRS graphs and TiRS frames: a new setting for duals of canonical extensions. , (in press).
László Babai; Cameron, P. J. (2015) Most primitive groups are full automorphism groups of edge-transitive hypergraphs. Journal of Algebra: 421, 512--523.
Couceiro, Miguel; Lehtonen, Erkko; Waldhauser, Tamás (2015) A survey on the arity gap. Journal of Multiple-Valued Logic and Soft Computing: 24, 223–249.
Lehtonen, Erkko; Pilitowska, Agata (2015) Entropicity and generalized entropic property in idempotent n-semigroups. Semigroup Forum: 91, 260–281.
Cameron, P. J.; Sebastian M. Cioaba (2015) A graph partition problem. American Mathematical Monthly: 122, 972-983.
Araújo, João; Kinyon, M. (2015) A natural characterization of semilattices of rectangular bands and groups of exponent two. Semigroup Forum: 91, 295-298.
Soares, Graça (2015) Some further notes on the matrix equations A^TXB+B^TX^TA=C and A^T X B+ B^T XA=C. Acta Mathematica Scientia: 35(1), 275-280.
Couceiro, Miguel; Lehtonen, Erkko; Schölzel, Karsten (2015) A complete classification of equational classes of threshold functions included in clones. RAIRO Operations Research: 49, 39–66.
Kinyon, M.; I. Wanless (2015) Loops with exponent 3 in all isotopes. International Journal of Algebra and Computation: 25(7), 1159-1177.
Gomes, Gracinda M. S.; Santa-Clara, Catarina; Soares, Filipa (2015) The semigroup ring of a restriction semigroup with an inverse skeleton. Semigroup Forum: 90 (2015), no. 2, 449–474.
Branco, Mário J. J.; Gomes, Gracinda M. S.; Gould, Victoria (2015) Ehresmann monoids.  J. Algebra : 443, 349–382.
Cameron, P. J.; Pablo Spiga (2015) Most switching classes with primitive automorphism groups contain graphs with trivial groups. Australasian J. Combinatorics: 62, 76-90.
Couceiro, Miguel; Lehtonen, Erkko; Waldhauser, Tamás (2015) On equational definability of function classes. J. Mult.-Valued Logic Soft Comput.: 24, 203–222.
Bentz, Wolfram; Mayr, P. (2014) Supernilpotence prevents dualizability. Journal of the Australian Mathematical Society: 96(1), 1-24.
Martins, Rachel (2014) C*-bundle dynamical systems. , (submitted).
Kassabov, Martin; Matucci, Francesco (2014) On groups with slow intersection growth. , (submitted).
Gouveia, M. J.; Priestley, H. A. (2014) Canonical extensions and profinite completions of semilattices and lattices . Order: 31(2), 189-216.
Lehtonen, Erkko (2014) Reconstructing multisets over commutative groupoids and affine functions over nonassociative semirings. International Journal of Algebra and Computation: 24(1), 11-31.
Belk, James; Matucci, Francesco (2014) Conjugacy and Dynamics in Thompson's groups. Geometriae Dedicata: 169(1), 239-261.
Araújo, João; Cameron, Peter (2014) Primitive Groups Synchronize Non-uniform Maps of Extreme Ranks. Journal of Combinatorial Theorie, Series B: 106, 98-114.
Medeiros, Paulo (2014) Compatible total orders on w-regular semigroups. Semigroup Forum: 89(1), 217-235.
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