Publications
The algebraic content of Bento Fernandes’s Tratado da arte de arismetica (1555). Historia Mathematica . 2008;35 :190-219.Edit
On an algorithm to decide whether a free group is a free factor of another. Theor. Inform. Appl.. 2008;42:395-414.Edit
[2008-24] Are there chaotic maps in the sphere? .
Asymptotic and summation formulas related to the Lebedev integrals. Integral Transforms Spec. Funct.. 2008;19:293-304.
All hereditary torsion theories are differential. J. Pure Appl. Algebra. 2009;213:476-478.Edit
Alphabetical satisfiability problem for trace equations. Acta Cybernetica. 2009;19(2):479-497.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
[2009-38] Around q-Appell polynomial sequences .Edit
Automorphisms of generalized down-up algebras. Comm. Algebra. 2009;37:1622-1646.
an all-at-once unimodal svm approach for ordinal classification. proceedings - 9th international conference on machine learning and applications, icmla 2010. 2010:59-64.Edit
An all-at-once unimodal SVM approach for ordinal classification. In: Proceedings - 9th International Conference on Machine Learning and Applications, ICMLA 2010.; 2010. Edit
An analog of Morgan's theorem for the Kontorovich-Lebedev transform. Adv. Pure Appl. Math.. 2010;1:159-162.Edit
Analysis of heart rate variability in a rat model of induced pulmonary hypertension. {MEDICAL ENGINEERING & PHYSICS}. 2010;{32}:{746-752}.Edit
Analysis of the mechanisms underlying windup using a detailed biophysical model of WDR neurons. BMC neuroscience. 2010;11:O14.Edit
Assessment of the general public's knowledge about rheumatic diseases: Evidence from a Portuguese population-based survey. BMC Musculoskeletal Disorders. 2010;11.Edit
Automorphic orbits in free groups: words versus subgroups. Internat. J. Algebra Comput.. 2010;20:561-590.Edit
On the average number of states of partial derivative automata. In: Developments in language theory. Vol 6224. Springer, Berlin; 2010. 1. p. 112-123p. (Lecture Notes in Comput. Sci.; vol 6224).Edit
An alternative point process framework for modeling multivariate extreme values. Comm. Statist. Theory Methods. 2011;40:2205-2224.Edit
Amalgams vs Yamamura’s HNN-extensions of inverse semigroups. Algebra Colloquium. 2011;18(4):647-657.Edit
On the Average State Complexity of Partial Derivative Automata: an analytic combinatorics approach. International Journal of Foundations of Computer Science. 2011;22:1593-1606.
The Average Transition Complexity of Glushkov and Partial Derivative Automata. In: Mauri G., Leporati A., editors. Developments in Language Theory, 15th International Conference, DLT 2011, Milano, Italy, July 2011. Proceedings. Vol 6795. Milano, Italy; 2011. 9. p. 93-104p. Edit