Publications
Free group languages: rational versus recognizable. Theor. Inform. Appl.. 2004;38:49-67.
Dicionário de Matemática Elementar, de Stella Baruk. Vol 2 Edições Afrontamento 2005.Edit
Extensions and submonoids of automatic monoids. Theoret. Comput. Sci.. 2002;289:727-754.Edit
a partitional clustering algorithm validated by a clustering tendency index based on graph theory. pattern recognition. 2006;39:776-788.Edit
On the semilattice of idempotents of a free inverse monoid. Proc. Edinburgh Math. Soc. (2). 1993;36:349-360.
A note on Pérez de Moya's Principios de Geometria (1584). Revue d'histoire des mathématiques . 2008;14 ( fascicule 1 ):113-133.Edit
On a class of automata groups generalizing lamplighter groups. Internat. J. Algebra Comput.. 2005;15:1213-1234.Edit
Finite idempotent inverse monoid presentations. Internat. J. Algebra Comput.. 2011;21:1111-1133.
Rational subsets of partially reversible monoids. Theoret. Comput. Sci.. 2008;409:537-548.
[2017-28] On finitely generated submonoids of free groups .
The algebraic content of Bento Fernandes’s Tratado da arte de arismetica (1555). Historia Mathematica . 2008;35 :190-219.Edit
Clifford monoid presentations. Math. Proc. Cambridge Philos. Soc.. 1992;111:445-454.
A geometric characterization of automatic monoids. Q. J. Math.. 2004;55:333-356.Edit
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
A wavelet-based method to measure stock market development. Open Journal of Statistics. 2014;4:86-96.Edit
[2006-1] The Reaction of Stock Markets to Crashes and Events: A Comparison Study between Emerging and Mature .Edit
Backward-stochastic-differential-equation approach to modeling of gene expression. Physical Review E. 2017;95:032418.Edit
Roughness in Cayley graphs. Inform. Sci.. 2010;180:3362-3372.Edit
The congruence $\eta^*$ on semigroups. Q. J. Math.. 2016;67:405-424.