publicações selecionadas
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artigo académico
- Project management practices to direct and control the project planning and execution in R&D units. International Journal of Productivity and Quality Management. 2024
- Basic concepts on the assessment of arterial baroreceptor sensitivity with non invasive methods. Estimate of the spontaneous gain of the arterial baroreceptor,Conceitos básicos da avaliação da sensibilidade dos barorreceptores arteriais por métodos não invasivos. Cálculo do ganho espontâneo do barorreceptor arterial.. Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology. 1996
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artigo de conferência
- Symbolic Computations Over the Algebra of Coquaternions 2019
- Quaternionic polynomials with multiple zeros: A numerical point of view. AIP Conference Proceedings. 2017
- Threatened fish and mussel populations in Douro basin (Northern Portugal): in-situ and ex-situ conservation measures 2017
- Stationary quasivariational inequalities with gradient constraint and nonhomogeneous boundary conditions. Springer Proceedings in Mathematics & Statistics. 2014
- Multiplicador de Lagrange num problema com restrição não constante no gradiente. Boletim da Sociedade Portuguesa de Matemática. 2012
- Avaliação do risco de úlcera de pressão no doente com queimadura 2010
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artigo de revista
- Dynamics of the coquaternionic maps x2 + bx. Rendiconti del Circolo Matematico di Palermo. 2023
- Time travelling through local ecological knowledge regarding an endangered species. Heredity. 2020
- Evolutionary quasi-variational and variational inequalities with constraints on the derivatives. Advances in Nonlinear Analysis. 2020
- The number of zeros of unilateral polynomials over coquaternions revisited. European Journal of Operational Research. 2019
- Computational Aspects of Quaternionic Polynomials - Part I: Manipulating, Evaluating and Factoring. The Mathematica Journal. 2018
- Computational Aspects of Quaternionic Polynomials - Part II: Root-Finding Methods. The Mathematica Journal. 2018
- Evaluation schemes in the ring of quaternionic polynomials. Bit Numerical Mathematics. 2018
- On the Roots of Coquaternions. Advances in Applied Clifford Algebras. 2018
- Weierstrass method for quaternionic polynomial root-finding. Mathematical Methods in the Applied Sciences. 2018
- Basins of attraction for a quadratic coquaternionic map. Chaos Solitons & Fractals. 2017
- Iteration of Quadratic Maps on Coquaternions. International Journal of Bifurcation and Chaos. 2017
- Blow-up and finite time extinction for p(x,t)-curl systems arising in electromagnetism. Journal of Mathematical Analysis and Applications. 2016
- Effect of viscosity of a liquid membrane containing oleyl alcohol on the pertraction of butyric acid. Chemical Papers. 2013
- Variational and quasivariational inequalities with first order constraints. Journal of Mathematical Analysis and Applications. 2013
- A class of electromagnetic p-curl systems: blow-up and finite time extinction. Nonlinear Analysis. 2012
- A nonlinear hyperbolic Maxwell system using measure-valued functions. Journal of Mathematical Analysis and Applications. 2012
- On a p-curl system arising in electromagnetism. Discrete Contin. Dyn. Syst. Ser. S. 2012
- A class of stationary nonlinear Maxwell systems. Math. Models Methods Appl. Sci.. 2009
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capítulo de livro
- A Two-Step Quaternionic Root-Finding Method. Computational Methods in Applied Sciences. 2023
- Remarks on the Vietoris Sequence and Corresponding Convolution Formulas. Computational Methods in Applied Sciences. 2023
- The Stability of Complex Dynamics for Two Families of Coquaternionic Quadratic Polynomials. Computational Methods in Applied Sciences. 2023
- A Modified Quaternionic Weierstrass Method. Computational Methods in Applied Sciences. 2022
- Fixed Points for Cubic Coquaternionic Maps. Computational Methods in Applied Sciences. 2022
- Remarks on the Zeros of Quadratic Coquaternionic Polynomials. Computational Methods in Applied Sciences. 2022
- Mathematica Tools for Coquaternions. Computational Methods in Applied Sciences. 2021
- Mathematica tools for quaternionic polynomials. Computational Methods in Applied Sciences. 2017
- Polynomials over quaternions and coquaternions: A unified approach. Computational Methods in Applied Sciences. 2017
- On a variational inequality for incompressible non-Newtonian thick flows. Contemporary Mathematics. 2016
- Modified quaternion Newton methods. Computational Methods in Applied Sciences. 2014
- Quaternions: A mathematica package for quaternionic analysis. Computational Methods in Applied Sciences. 2011
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documento
- Numerical Problems in the Ring of Quaternionic Polynomials 2022
- quatPol: a Matlab Toolbox 2021
- Matemática Computacional II com o Mathematica 2020
- CoqPolynomial 2019
- Dynamics with Coquaternions. CIM Bulletin. 2018
- QPolynomial 2018
- Coquaternions Package 2017
- Coquaternions Mathematica Package 2017
- QuaternionAnalysis Mathematica Package 2014
- Multiplicador de Lagrange num problema com restrição não constante no gradiente 2012
- Introdução à Análise Real 2010
- Evolução da fecundidade em duas paróquias minhotas - uma perspectiva comparada 1995
- On the estimation of the baroreflex gain by spectral methods 1995
- Técnicas espectrais na estimação do ganho do reflexo baroreceptor 1994
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teses