Publications

2004	Abelian kernels, solvable monoids and the abelian kernel length of a finite monoid	Semigroups and Languages \| 2004 \| inproceedings	Manuel Delgado VH Fernandes
2004	An application of first-order logic to the study of recognizable languages	International Journal of Algebra and Computation \| 2004 \| article	Pedro V. Silva
2004	An econophysics approach to the Portuguese Stock Index - PSI-20	Physica A-statistical Mechanics and Its Applications \| 2004 \| article	Sílvio Gama José Abílio Matos HJ Ruskin JAMS Duarte
2004	Blind source separation using time-delayed signals	2004 Ieee International Joint Conference on Neural Networks, Vols 1-4, Proceedings \| 2004 \| inproceedings	Rute Almeida Ana Paula Rocha AM Tome AR Teixeira EW Lang K Stadlthanner
2004	Chebyshev polynomials over finite fields and reversibility of sigma-automata on square grids	Theoretical Computer Science \| 2004 \| article	António Machiavelo H Park M Hunziker
2004	Euclidean Jordan Algebras with Strongly Regular Graphs	Journal of Mathematical Sciences \| 2004 \| article	Luís Vieira DM Cardoso
2004	Free group languages: Rational versus recognizable	Rairo-theoretical Informatics and Applications \| 2004 \| article	Pedro V. Silva
2004	GRASP for linear integer programming	Metaheuristics: Computer Decision-making \| 2004 \| inproceedings	João Pedro Pedroso T Neto
2004	Hyperbolic times: frequency versus integrability	Ergodic Theory and Dynamical Systems \| 2004 \| article	José Ferreira Alves V Araujo
2004	Index transforms associated with generalized hypergeometric functions	Mathematical Methods in the Applied Sciences \| 2004 \| article	Semyon Yakubovich
2004	Integrals in Hopf algebras over rings	Communications in Algebra \| 2004 \| article	Christian Lomp
2004	Intersection and linking numbers in oriented matroids	Discrete & Computational Geometry \| 2004 \| article	António Guedes de Oliveira P Carvalho
2004	Loss of synchronization in partially coupled Hodgkin-Huxley equations	Bulletin of Mathematical Biology \| 2004 \| article	Isabel Labouriau Carla M.A. Pinto
2004	Lyapunov exponents and rates of mixing for one-dimensional maps	Ergodic Theory and Dynamical Systems \| 2004 \| article	José Ferreira Alves S Luzzatto V Pinheiro
2004	Moduli spaces of holomorphic triples over compact Riemann surfaces	Mathematische Annalen \| 2004 \| article	Peter Gothen O Garcia Prada SB Bradlow
2004	New implementation of the Tau method for PDEs	Journal of Computational and Applied Mathematics \| 2004 \| article	Paulo Vasconcelos Maria João Rodrigues José Matos
2004	On semigroups whose idempotent-generated subsemigroup is aperiodic	International Journal of Algebra and Computation \| 2004 \| article	Manuel Delgado B Steinberg S Margolis VH Fernandes
2004	On the least values of L-p-norms for the Kontorovich-Lebedev transform and its convolution	Journal of Approximation Theory \| 2004 \| article	Semyon Yakubovich
2004	On the lebedev transformation in hardy's spaces	International Journal of Mathematics and Mathematical Sciences \| 2004 \| article	Semyon Yakubovich
2004	Partitioning orthogonal polygons by extension of all edges incident to reflex vertices: Lower and upper bounds on the number of pieces	Computational Science and Its Applications - Iccsa 2004, Pt 3 \| 2004 \| article	Ana Paula Tomás AL Bajuelos F Marques
2004	Quadratic-time linear-space algorithms for generating orthogonal polygons with a given number of vertices	Computational Science and Its Applications - Iccsa 2004, Pt 3 \| 2004 \| article	Ana Paula Tomás AL Bajuelos
2004	Quantification of the QT variability related to HRV: Robustness study facing automatic delineation and noise on the ECG	Computers in Cardiology 2004, Vol 31 \| 2004 \| inproceedings	Rute Almeida Ana Paula Rocha E Pueyo JP Martinez P Laguna
2004	Random start local search and tabu search for a discrete lot-sizing and scheduling problem	Metaheuristics: Computer Decision-making \| 2004 \| inproceedings	João Pedro Pedroso A Pereira F Carvalho M Constantino
2004	Stability of equilibria in equations of Hodgkin-Huxley type	Real and Complex Singularities - Contemporary Mathematics \| 2004 \| misc	Isabel Labouriau Carlos Rito
2004	Strong statistical stability of non-uniformly expanding maps	Nonlinearity \| 2004 \| article	José Ferreira Alves