Publications
[2016-26] Equidivisible pseudovarieties of semigroups .Edit
Some quasi-ordered classes of finite commutative semigroups. Semigroup Forum. 1985;32:189-200.Edit
Idempotent-generated semigroups and pseudovarieties. Proceedings of the Edinburgh Mathematical Society. 2011;54:545-568.Edit
On fixed points of the lower set operator. Int. J. Algebra Comput.. 2015;25(1-2):259-292.Edit
Pseudovariety joins involving $\scr J$-trivial semigroups. Internat. J. Algebra Comput.. 1999;9:99-112.Edit
Semigrupos finitos e álgebra universal Universidade de São Paulo, Instituto de Matemática e Estatí stica, São Paulo 1991.Edit
Semisimple synchronizing automata and the Wedderburn-Artin theory. Internat. J. Foundat. Comput. Sci.. 2016;27(2):127-145.Edit
Implicit operations on certain classes of semigroups. In: Semigroups and their applications (Chico, Calif., 1986). Reidel, Dordrecht; 1987. 1. p. 1-11p. Edit
José Morgado: in memoriam. Bol. Soc. Port. Mat.. 2004:1-18.Edit
Free profinite semigroups over semidirect products. Izv. Vyssh. Uchebn. Zaved. Mat.. 1995:3-31.Edit
On the power semigroup of a finite semigroup. Portugal. Math.. 1992;49:295-331.Edit
New decidable upper bound of the second level in the Straubing-Thérien concatenation hierarchy of star-free languages. Discrete Math. Theor. Comput. Sci.. 2010;12:41-58.Edit
The pro-nilpotent group topology on a free group. Journal of Algebra. 2017;480:332-345.Edit
Sur certains systèmes d'équations avec contraintes dans un groupe libre–-addenda. Port. Math. (N.S.). 2001;58:379-387.Edit
The equation $\bf PX=\bf PJ$. In: Proceedings of the International Symposium on the Semigroup Theory and its Related Fields (Kyoto, 1990). Shimane Univ., Matsue; 1990. 1. p. 1-11p. Edit
Decidability and tameness in the theory of finite semigroups. Bull. Iranian Math. Soc.. 2008;34:1-22.Edit
[2017-1] The linear nature of pseudowords .Edit
On the decidability of iterated semidirect products with applications to complexity. Proc. London Math. Soc. (3). 2000;80:50-74.Edit
Exploring QT variability dependence from heart rate in coma and brain death on pediatric patients. In: Computing in Cardiology. Vol 40.; 2013. 6. p. 61-64p. Edit
On power varieties of semigroups. J. Algebra. 1989;120:1-17.Edit
Tameness of pseudovariety joins involving R. Monatsh. Math.. 2005;146:89-111.Edit
Fetal QRS detection and heart rate estimation: A wavelet-based approach. Physiological Measurement. 2014;35:1723-1735.Edit