Publications
Found 406 results
Author Title Type [ Year] Filters: First Letter Of Last Name is D [Clear All Filters]
The Lattice of Synchrony Subspaces of a Coupled Cell Network: Characterization and Computation Algorithm. Journal of Nonlinear Science.Edit
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.
Parallel projection of matroid spheres. Portugal. Math.. 1988;45:337-346.Edit
A simple alternative principle for rational τ-method approximation. In: Nonlinear numerical methods and rational approximation (Wilrijk, 1987). Vol 43. Reidel, Dordrecht; 1988. 4. p. 427-434p. (Math. Appl.; vol 43).Edit
Simplicial convex $4$-polytopes do not have the isotopy property. Portugal. Math.. 1990;47:309-318.Edit
Algebraic varieties characterizing matroids and oriented matroids. Adv. Math.. 1991;87:160-185.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
Implementation of the recurrence relations of biorthogonality. Numerical Algorithms. 1992;3:173-183.Edit
Nonconnected heterodimensional cycles: bifurcation and stability. Nonlinearity. 1992;5:1315-1341.Edit
A note on the fundamental group of the Salvetti complex determined by an oriented matroid. European J. Combin.. 1992;13:429-437.Edit
Oriented matroids: an essentially topological algebraic model Univ. Coimbra, Coimbra 1993.Edit
Invariant theory-like theorems for matroids and oriented matroids. Adv. Math.. 1994;109:34-44.Edit
Applications of $N$-fractional calculus to infinite sums. J. Fract. Calc.. 1995;8:37-42.Edit
Columnwise block LU factorization using BLAS kernels on VAX 6520/2VP. Computing Systems in Engineering. 1995;6:423-429.
Performance of a QR algorithm implementation on a multicluster of transputers. Computing Systems in Engineering. 1995;6:363-367.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
On the cube problem of Las Vergnas. Geom. Dedicata. 1996;63:25-43.Edit
A generalized Desargues configuration and the pure braid group. Discrete Math.. 1996;160:105-113.Edit
Heart rate variability in brain death. {CLINICAL AUTONOMIC RESEARCH}. 1996;{6}:{141-146}.Edit
Instant chaos is chaos in slow motion. J. Math. Anal. Appl.. 1996;199:138-148.Edit
Instant chaos is chaos in slow motionLabouriau IS, Dias AP. Instant chaos is chaos in slow motion. J. Math. Anal. Appl.. 1996;199:138-148. J. Math. Anal. Appl.. 1996;199:138-148.Edit
methodological developments in decision trees. an application to protein secondary structure prediction. ordinal and symbolic data analysis. 1996:179-188.Edit