Publications
A note on pure and $p$-pure languages. Acta Inform.. 2003;39:579-595.
Trees associated to inverse monoid presentations. J. Pure Appl. Algebra. 2001;165:307-335.
Luis Inacio Woodhouse (1857-1927). Vol 1. U. Porto Edições ed. 2018.Edit
Field dimension and skill level constrain team tactical behaviours in small-sided and conditioned games in football. Journal of sports sciences. 2014;32:1888-1896.Edit
On finite-index extensions of subgroups of free groups. J. Group Theory. 2010;13:365-381.Edit
Dicionário de Matemática Elementar, de Stella Baruk. Vol 2 Edições Afrontamento 2005.Edit
Rational languages and inverse monoid presentations. Internat. J. Algebra Comput.. 1992;2:187-207.
The homomorphism problem for the free monoid. Discrete Math.. 2002;259:189-200.
On the circulation of algebraic knowledge in the Iberian península: the sources of Pérez de Moya's Tratado de Arithmetica (1573). Revue d'histoire des mathématiques . 2016;2:145-184.Edit
[2015-25] On the circulation of algebraic knowledge in the Iberian península: the sources of Pérez de Moya's Tratado de Arithmetica (1573) .Edit
On an algorithm to decide whether a free group is a free factor of another. Theor. Inform. Appl.. 2008;42:395-414.Edit
Groups and automata: a perfect match. J. Automata Lang. Combin.. 2012;17(2-4):277-292.
On free inverse monoid languages. RAIRO Inform. Théor. Appl.. 1996;30:349-378.
Equações no «Libro de Algebra» de Pedro Nunes. Vol 68 APM 2002.Edit
The homomorphism problem for trace monoids. Theoret. Comput. Sci.. 2003;307:199-215.
Howson’s property for semidirect products of semilattices by groups. Comm. Algebra. 2016;44(6):2482-2494.Edit
Recognizable subsets of a group: finite extensions and the abelian case. Bull. Eur. Assoc. Theor. Comput. Sci. EATCS. 2002:195-215.
Automorphic orbits in free groups: words versus subgroups. Internat. J. Algebra Comput.. 2010;20:561-590.Edit
The algebraic content of Bento Fernandes’s Tratado da arte de arismetica (1555). Historia Mathematica . 2008;35 :190-219.Edit
Heart Rate Variability in Children Submitted to Surgery. Journal of Anesthesia & Clinical Research. 2016;7.Edit
Normal-convex embeddings of inverse semigroups. Glasgow Math. J.. 1993;35:115-121.