Publications
Reduction of order of cluster-type recurrence relations. São Paulo J. Math. Sci.. 2012;6:203-225.Edit
Degeneracy of some Lie algebras. In: Summer School on Differential Geometry (Coimbra, 1999). Univ. Coimbra, Coimbra; 1999. 9. p. 91-98p. Edit
Normal forms for locally exact Poisson structures in R^3. Journal of Geometry and Physics. 2002;43(1):27-32.Edit
Normal forms for two classes of exact Poisson structures in dimension four. Journal of the London Mathematical Society. 2006;73(01):194-208.Edit
[2008-20] On Sufficient and Necessary Conditions for Linearity of the Transverse Poisson Structure .Edit
Linearity of the transverse Poisson structure to a coadjoint orbit. Lett. Math. Phys.. 2003;65:213-227.Edit
Dynamics of the Birational Maps Arising from F0 and DP3 Quivers. Journal of Mathematical Analysis and Applications. 2015;431(2):903-918.Edit
On sufficient and necessary conditions for linearity of the transverse Poisson structure. Journal of Geometry and Physics. 2010;60(3):543-551.Edit
A family of degenerate Lie algebras. J. Geom. Phys.. 1999;31:51-63.Edit
Burnout Syndrome and Coping Strategies in Portuguese Oncology Health Care Providers. Archives of Clinical Psychiatry. 2017;44(5):122-6.Edit
[2010-31] Error Bounds and Discretization Grids in the Solution of Weakly Singular Integral Equations .Edit
Preconditioners for nonsymmetric linear systems in domain decomposition applied to a coupled discretization of Navier-Stokes equations. In: Palma JMLM, Dongarra J, editors. Vector and Parallel Processing –- VECPAR'96: Second International Conference on Vector and Parallel Processing –- Systems and Application Porto, Portugal, September 25–27, 1996 Selected Papers. Vol 1215. Springer Berlin Heidelberg; 1997. 2. p. 295-312p. (Lecture Notes in Computer Science; vol 1215).Edit
A Parallel Implementation of the Atkinson Algorithm for Solving a Fredholm Equation. In: Palma JMLM, A. Sousa A, Dongarra J, Hernández V, editors. High Performance Computing for Computational Science –- VECPAR 2002: 5th International Conference Porto, Portugal, June 26–28, 2002 Selected Papers and Invited Talks. Vol 2565. Springer Berlin Heidelberg; 2003. 3. p. 368-376p. (Lecture Notes in Computer Science; vol 2565).Edit
[2010-33] Convergence of Multipower Defect Correction for Spectral Computations of Integral Operators .
Parallelization of an implicit algorithm for fluid flow problems. In: Topping B.HV, editor. Parallel and Distributed Processing for Computational Mechanics: Systems and Tools. Saxe-Coburg Publications, Stirlingshire, UK; 1999. 3. p. 300-314p. Edit
Convergence of Multipower Defect-Correction for spectral computations of integral operators. Applied Mathematics and Computation. 2012;219:1601-1606.
Is the iterative refinement of eigenelements an expensive technique?. In: Proceedings of the 2nd international conference on computational and applied mathematics (Leuven, 1986). Vol 20.; 1987. 1. p. 159-166p.
A numerical study of iterative refinement schemes for weakly singular integral equations. Applied Mathematics Letters. 2005;18:571-576.Edit
The least squares problems and orthogonal polynomials. In: Orthogonal polynomials and their applications (Erice, 1990). Vol 9. Baltzer, Basel; 1991. 2. p. 217-222p. (IMACS Ann. Comput. Appl. Math.; vol 9).Edit
Groups and Semigroups Defined by Colorings of Synchronizing Automata. International Journal of Algebra and Computation. In Press.Edit
A geometric approach to (semi)-groups defined by automata via dual transducers. Geometriae Dedicata. In Press.Edit
rejoinder to letter to the editor from c. genest and j-f. plante concerning 'pinto da costa, j. & soares, c. (2005) a weighted rank measure of correlation.'. australian & new zealand journal of statistics. 2007;49:205-207.Edit
A weighted rank measure of correlation. Aust. N. Z. J. Stat.. 2005;47:515-529.Edit
the unimodal model for the classification of ordinal data (vol 21, pg 78, 2008). neural networks. 2014;59:73-75.Edit
classification of ordinal data using neural networks. machine learning: ecml 2005, proceedings. 2005;3720:690-697.Edit