Publications
On an algorithm to decide whether a free group is a free factor of another. Theor. Inform. Appl.. 2008;42:395-414.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 free inverse monoid languages. RAIRO Inform. Théor. Appl.. 1996;30:349-378.
The homomorphism problem for trace monoids. Theoret. Comput. Sci.. 2003;307:199-215.
Automorphic orbits in free groups: words versus subgroups. Internat. J. Algebra Comput.. 2010;20:561-590.Edit
Recognizable subsets of a group: finite extensions and the abelian case. Bull. Eur. Assoc. Theor. Comput. Sci. EATCS. 2002:195-215.
A note on Pérez de Moya's Principios de Geometria (1584). Revue d'histoire des mathématiques . 2008;14 ( fascicule 1 ):113-133.Edit
[2017-28] On finitely generated submonoids of free groups .
Normal-convex embeddings of inverse semigroups. Glasgow Math. J.. 1993;35:115-121.
Howson’s property for semidirect products of semilattices by groups. Comm. Algebra. 2016;44(6):2482-2494.Edit
The algebraic content of Bento Fernandes’s Tratado da arte de arismetica (1555). Historia Mathematica . 2008;35 :190-219.Edit
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
Fixed points of endomorphisms of virtually free groups. Pacific J. Math.. 2013;263:207-240.
Heart Rate Variability in Children Submitted to Surgery. Journal of Anesthesia & Clinical Research. 2016;7.Edit
Free group languages: rational versus recognizable. Theor. Inform. Appl.. 2004;38:49-67.
Effects of pitch size and skill level on tactical behaviours of Association Football players during small-sided and conditioned games. International Journal of Sports Science & Coaching. 2014;9:993-1006.Edit
Equações no «Libro de Algebra» de Pedro Nunes. Vol 68 APM 2002.Edit
[2010-14] Finite idempotent inverse monoid presentations .
Extensions and submonoids of automatic monoids. Theoret. Comput. Sci.. 2002;289:727-754.Edit
On a class of automata groups generalizing lamplighter groups. Internat. J. Algebra Comput.. 2005;15:1213-1234.Edit