Publications
Some non-commutative neutrix convolution products of functions. Math. Balkanica (N.S.). 1995;9:287-297.Edit
The spectral analysis of heart rate variability. A comparative study between nonparametric and parametric spectral analysis in short series . {Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology}. 1995;{14}:{621-626}.Edit
On the Steinitz exchange lemma. Discrete Math.. 1995;137:367-370.Edit
Simulation of the movement of a buoy submitted to a velocity field due to ocean currents and random wind forces. In: 3º Congresso de Métodos Numéricos em Ingeniería.; 1996. 9. p. 981-988p. Edit
Singularities of equations of Hodgkin-Huxley type. Dynam. Stability Systems. 1996;11:91-108.Edit
Strange attractors in saddle-node cycles: prevalence and globality. Invent. Math.. 1996;125:37-74.Edit
A syntactical proof of locality of DA. Internat. J. Algebra Comput.. 1996;6:165-177.Edit
Second-order conditions for local controllability. Systems Control Lett.. 1998;35:287-290.
On the stabilization of the inversion of some Kontorovich-Lebedev like integral transforms. Z. Anal. Anwendungen. 1998;17:675-690.Edit
On semilocal modules and rings. Comm. Algebra. 1999;27:1921-1935.Edit
Shohat-Favard and Chebyshev's methods in d-orthogonality. Numerical Algorithms. 1999;20:139-164.Edit
Some algorithmic problems for pseudovarieties. Publ. Math. Debrecen. 1999;54:531-552.Edit
Spatial hidden symmetries in pattern formation. In: Pattern formation in continuous and coupled systems (Minneapolis, MN, 1998). Vol 115. Springer, New York; 1999. 8. p. 83-99p. (IMA Vol. Math. Appl.; vol 115).Edit
On the structure of Cohen-Macaulay simplicial affine semigroups. Comm. Algebra. 1999;27:511-518.Edit
Sur certains systèmes d'équations avec contraintes dans un groupe libre. Portugal. Math.. 1999;56:409-417.Edit
Symmetry-breaking Bifurcations of Wreath Product Systems. Journal of Nonlinear Science . 1999;9:671-695.Edit
SRB measures for non-hyperbolic systems with multidimensional expansion. Ann. Sci. École Norm. Sup. (4). 2000;33:1-32.
SRB measures for partially hyperbolic systems whose central direction is mostly expanding. Invent. Math.. 2000;140:351-398.Edit
Statistical properties of passive tracersin a positive four-point vortex model. American Physical Society. 2000;62:1424-1426.Edit
On the structure of simplicial affine semigroups. Proc. Roy. Soc. Edinburgh Sect. A. 2000;130:1017-1028.Edit
Syntactic and global semigroup theory: a synthesis approach. In: Algorithmic problems in groups and semigroups (Lincoln, NE, 1998). Birkhäuser Boston, Boston, MA; 2000. 1. p. 1-23p. (Trends Math.).Edit
SC-hyperdecidability of $\bf R$. Theoret. Comput. Sci.. 2001;255:569-591.Edit
Short-waves instabilities in the Benjamin-Bona-Mahoney-Perigrine equation: theory and numerics. Inverse Problems. 2001;17(4):864-870.Edit
Singularities of the Hamiltonian Vectorfield in Optimal Control Problems. Journal of Mathematical Analysis and Applications. 2001;254(1):53-70.