Publications
QT variability and HRV interactions in ECG: Quantification and reliability. {IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING}. 2006;{53}:{1317-1329}.Edit
Counting factors in words, semidirect products and power semigroups. In: Words, languages and combinatorics (Kyoto, 1990). World Sci. Publ., River Edge, NJ; 1992. 1. p. 1-15p. Edit
Semidirect product with an order-computable pseudovariety and tameness. Semigroup Forum. 2010;81:26-50.Edit
Globals of pseudovarieties of commutative semigroups: the finite basis problem, decidability and gaps. Proc. Edinb. Math. Soc. (2). 2001;44:27-47.Edit
Some algorithms on the star operation applied to finite languages. Semigroup Forum. 1984;28:187-197.Edit
Power exponents of aperiodic pseudovarieties. Semigroup Forum. 1999;59:18-32.Edit
Quantification of the QT variability related to HRV: Robustness study facing automatic delineation and noise on the ECG. In: {31st Annual Scientific Meeting on Computers in Cardiology}. Vol {31}. {IEEE}; 2004. {. {p. 769-772p. }.Edit
An elementary proof that finite groups are projectively torsion-free. Portugal. Math.. 1990;47:437-444.Edit
A note on pseudovarieties of completely regular semigroups. Bulletin of the Australian Mathematical Society. 2015;92(2):233-237.Edit
Description and analysis of a bottom-up DFA minimization algorithm. Inform. Process. Lett.. 2008;107:52-59.Edit
P wave delineation using spatially projected leads from wavelet transform loops. In: Murray A, editor. {37th Annual Conference of the Computing-in-Cardiology}. Vol {37}. {IEEE}; 2010. {. {p. 1003-1006p. }.Edit
Semisimple synchronizing automata and the Wedderburn-Artin theory. In: Developments in Language Theory, 2014. Vol Developments in Language Theory. Russia, Ekaterinburg: Springer; 2014. 4. p. 49-60p. Edit
[2004-21] Tameness of pseudovariety joins involving R .Edit
Free profinite $\scr R$-trivial monoids. Internat. J. Algebra Comput.. 1997;7:625-671.Edit
[2006-44] Pointlike sets with respect to R and J .Edit
On pseudovarieties of monoids. In: Semigroups, theory and applications (Oberwolfach, 1986). Vol 1320. Springer, Berlin; 1988. 1. p. 11-17p. (Lecture Notes in Math.; vol 1320).Edit
On the irreducibility of pseudovarieties of semigroups. Journal of Pure and Applied Algebra. 2016;220(4):1517-1524.Edit
The pseudovariety of semigroups of triangular matrices over a finite field. Theor. Inform. Appl.. 2005;39:31-48.Edit
Are 2 Electrocardiographic Leads Enough for Multilead Wave Boundary Location and QT Measuring? In: Murray A, editor. {36th Annual Computers in Cardiology Conference (CinC 2009)}. Vol {36}. {IEEE}; 2009. {. {p. 593-596p. }.Edit
Incremental DFA Minimisation. In: Domaratzki M, Salomaa K, editors. Proceedings of the 15th International Conference on Implementation and Application of Automata (CIAA 2010). Winnipeg, MA, Canada; 2011. 3. p. 39-48p. Edit