Publications
Movement and Shape. Vol 71 Bol. Soc. Port. Mat. 2014.Edit
Injective modules over down-up algebras. Glasg. Math. J.. 2010;52:53-59.Edit
Monolithic modules over Noetherian rings. Glasg. Math. J.. 2011;53:683-692.Edit
A note on reversibility and Pell equations. Vol 75 SPM 2017.Edit
Curved Pythagorean triangles. Vol 69 Bol. Soc. Port. Mat. 2013.Edit
Intersection and linking numbers in oriented matroids. Discrete Comput. Geom.. 2004;31:305-321.Edit
Entropy dimension of dynamical systems. Portugaliae Mathematica. 1997;54(1):19-40.
Persistence of Bowen-Ruelle-Sinai measures. Discrete and Continuous Dynamical Systems. 2007;17(1):213-221.
O método de Diofanto e a curva a^b = b^a SPM In Press.Edit
Prime links in some skew-polynomial and skew-Laurent rings. Comm. Algebra. 1997;25:1443-1469.
Convergence of p-adic series. Vol 72 Bol. Soc. Port. Mat. 2015.Edit
Imperfect friezes of integers. Vol 67 Bol. Soc. Port. Mat. 2012.
Bowen-Ruelle-Sinai measures for n-dimensional derived from Anosov diffeomorphisms. Ergodic Theory & Dynamical Systems. 1993;13:21-44.
Quantitative recurrence for free semigroup actions. Nonlinearity. 2018;31(3):864-886.Edit
Periodic points of Ruelle-expanding maps. Qualitative Theory of Dynamical Systems. 2014;Volume 13(Issue 2 ):215-251 .
The chord method. Vol Special Issue - Euler's tercentenary year Bol. Soc. Port. Mat. 2008.
Commuting expanding dynamics. Portugaliae Mathematica. 1999;56(4):443-463.
On the Lyapunov spectrum of infinite dimensional random products of compact operators. Stochastics and Dynamics. 2008;8(4):1-19.
Automorphisms of generalized down-up algebras. Comm. Algebra. 2009;37:1622-1646.
Down-up algebras and their representation theory. J. Algebra. 2000;228:286-310.Edit
Generic area-preserving reversible diffeomorphisms. Nonlinearity. 2015;28:1695-1720.Edit
Geometric orbits. Mathematical Intelligencer. 2012;34(2):56-62.Edit
First homoclinic tangencies on the boundary of Anosov diffeomorphisms. Discrete and Continuous Dynamical Systems. 1998;4(4):765-782.
A variational principle for free semigroup actions. Advances in Mathematics. 2018;334:450-487.Edit