All Stories

  1. Low rank approximation in the computation of first kind integral equations with TauToolbox

    Article • Applied Numerical Mathematics, November 2024, Elsevier

    Paulo B. Vasconcelos

  2. On Fourier Series in the Context of Jacobi Matrices

    Article • Axioms, August 2024, MDPI AG

    Paulo B. Vasconcelos

  3. A Low-Rank Matrix Approach to Compute Polynomial Approximations of Smooth Two-Dimensional Functions

    Article • Mathematics in Computer Science, May 2024, Springer Science + Business Media

    Paulo B. Vasconcelos

  4. Solving Partial Differential Problems with Tau Toolbox

    Article • Mathematics in Computer Science, May 2024, Springer Science + Business Media

    Paulo B. Vasconcelos

  5. Global directed technical change model with fiscal and monetary policies, and public debt

    Article • Economic Change and Restructuring, March 2024, Springer Science + Business Media

    Paulo B. Vasconcelos

  6. Influence of the order between discretization and regularization in solving ill-posed problems

    Article • Mathematics and Computers in Simulation, February 2024, Elsevier

    Paulo B. Vasconcelos

  7. High-Speed Fluid-Structure Interactions on a Compliant Panel Under Shock Impingement

    Article • AIAA Journal, March 2023, American Institute of Aeronautics and Astronautics (AIAA)

    Paulo B. Vasconcelos

  8. Impact of refugees on wages and economic growth in a model with inflation

    Article • Applied Economics, February 2023, Taylor & Francis

    Paulo B. Vasconcelos

  9. Hysteresis in the Dynamics of Employment by Activity Sector

    Article • Review of Political Economy, November 2022, Taylor & Francis

    Paulo B. Vasconcelos

  10. Local and global indeterminacy and transition dynamics in a growth model with public goods

    Article • Portuguese Economic Journal, August 2022, Springer Science + Business Media

    Paulo B. Vasconcelos

  11. Fast and accurate solvers for weakly singular integral equations

    Article • Numerical Algorithms, August 2022, Springer Science + Business Media

    Paulo B. Vasconcelos

  12. Solving differential eigenproblems via the spectral Tau method

    Article • Numerical Algorithms, July 2022, Springer Science + Business Media

    Paulo B. Vasconcelos

  13. Two Singularity Subtraction Schemes for a Class of Nonlinear Weakly Singular Integral Equations

    Article • Numerical Functional Analysis and Optimization, June 2022, Taylor & Francis

    Paulo B. Vasconcelos

  14. Labour market reforms and employment hysteresis

    Article • Acta Oeconomica, June 2022, Akademiai Kiado

    Paulo B. Vasconcelos

  15. A Time-Splitting Tau Method for PDE’s: A Contribution for the Spectral Tau Toolbox Library

    Article • Mathematics in Computer Science, March 2022, Springer Science + Business Media

    Paulo B. Vasconcelos

  16. Foreword to the Special Focus on Advances in Symbolic and Numeric Computation IV

    Article • Mathematics in Computer Science, March 2022, Springer Science + Business Media

    Paulo B. Vasconcelos

  17. Play-Hysteresis in the Joint Dynamics of Employment and Investment

    Article • Mathematics in Computer Science, March 2022, Springer Science + Business Media

    Paulo B. Vasconcelos

  18. Effectiveness of Floating-Point Precision on the Numerical Approximation by Spectral Methods

    Article • Mathematical and Computational Applications, May 2021, MDPI AG

    Paulo B. Vasconcelos

  19. Comércio Intra-Indústria

    Article • Notas Económicas, April 2021, Coimbra University Press

    Paulo B. Vasconcelos

  20. Hysteresis and sources of aggregate employment inertia

    Article • Studies in Nonlinear Dynamics & Econometrics, November 2020, De Gruyter

    Paulo B. Vasconcelos

  21. Employment hysteresis: an argument for avoiding front-loaded fiscal consolidations in the eurozone

    Article • Review of Keynesian Economics, October 2020, Edward Elgar Publishing

    Paulo B. Vasconcelos

  22. Foreword to the Special Focus on Advances in Symbolic and Numeric Computation III

    Article • Mathematics in Computer Science, June 2020, Springer Science + Business Media

    Paulo B. Vasconcelos

  23. Bidiagonal SVD Computation via an Associated Tridiagonal Eigenproblem

    Article • ACM Transactions on Mathematical Software, June 2020, ACM (Association for Computing Machinery)

    Paulo B. Vasconcelos

  24. Directed technical change and environmental quality

    Article • Portuguese Economic Journal, March 2020, Springer Science + Business Media

    Manuela Magalhaes, Paulo B. Vasconcelos

  25. Estimating the Employment Band of Inaction with Multiple Breaks due to Labor Market Reforms

    Article • Mathematics in Computer Science, March 2020, Springer Science + Business Media

    Paulo B. Vasconcelos

  26. Approximating the solution of integro-differential problems via the spectral Tau method with filtering

    Article • Applied Numerical Mathematics, March 2020, Elsevier

    Paulo B. Vasconcelos

  27. Solving Nonholonomic Systems with the Tau Method

    Article • Mathematical and Computational Applications, October 2019, MDPI AG

    Paulo B. Vasconcelos

  28. The labour-share decrease and the technological-knowledge increase

    Article • Applied Economics Letters, August 2019, Taylor & Francis

    Professor Oscar Afonso, Paulo B. Vasconcelos

  29. Dealing with Functional Coefficients Within Tau Method

    Article • Mathematics in Computer Science, March 2018, Springer Science + Business Media

    Paulo B. Vasconcelos

  30. PageRank Computation with MAAOR and Lumping Methods

    Article • Mathematics in Computer Science, March 2018, Springer Science + Business Media

    Paulo B. Vasconcelos

  31. Data-sparse approximation on the computation of a weakly singular Fredholm equation: A stellar radiative transfer application

    Article • Applied Numerical Mathematics, April 2017, Elsevier

    Paulo B. Vasconcelos

  32. Computing the Bidiagonal SVD Through an Associated Tridiagonal Eigenproblem

    Article • January 2017, Springer Science + Business Media

    Paulo B. Vasconcelos

  33. Spectral Lanczos’ Tau Method for Systems of Nonlinear Integro-Differential Equations

    Article • January 2017, Springer Science + Business Media

    Paulo B. Vasconcelos

  34. Towards a Lanczos’ $$\tau $$ τ -Method Toolkit for Differential Problems

    Article • Mathematics in Computer Science, April 2016, Springer Science + Business Media

    Paulo B. Vasconcelos

  35. Improving the Accuracy of Chebyshev Tau Method for Nonlinear Differential Problems

    Article • Mathematics in Computer Science, April 2016, Springer Science + Business Media

    Paulo B. Vasconcelos

  36. High-skilled workers, the share of the high-tech sector and economic growth in European countries

    Article • Macroeconomic Dynamics, April 2016, Cambridge University Press

    Prof. Pedro Mazeda Gil, Paulo B. Vasconcelos

  37. A modified iterated projection method adapted to a nonlinear integral equation

    Article • Applied Mathematics and Computation, March 2016, Elsevier

    Paulo B. Vasconcelos

  38. Discrete Dynamics for the Core-periphery Model

    Article • Spatial Economic Analysis, January 2015, Taylor & Francis

    Paulo B. Vasconcelos

  39. Dynamic Political Effects in a Neoclassic Growth Model with Healthcare and Creative Activities

    Article • January 2015, Springer Science + Business Media

    Paulo B. Vasconcelos

  40. The Macrodynamics of Employment Under Uncertainty

    Article • January 2015, Springer Science + Business Media

    Paulo B. Vasconcelos

  41. A hysteresis model-based indicator for employment adjustment rigidity

    Article • Empirica, June 2014, Springer Science + Business Media

    Paulo B. Vasconcelos

  42. Computation of Optimal Control Solutions with the Tau Method and an Error Estimator

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Paulo B. Vasconcelos

  43. Lumping Method with Acceleration for the PageRank Computation

    Article • June 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Paulo B. Vasconcelos

  44. Tau Method for Linear Quadratic Regulator Problems

    Article • Journal of Applied Nonlinear Dynamics, June 2014, L&H Scientific Publishing, LLC

    Paulo B. Vasconcelos

  45. Economic growth and multiple equilibria: A critical note

    Article • Economic Modelling, January 2014, Elsevier

    Professor Oscar Afonso, Paulo B. Vasconcelos

  46. Experiments with GPU-Acceleration for Solving a Radiative Transfer Problem

    Article • January 2014, Springer Science + Business Media

    Paulo B. Vasconcelos

  47. Modified projection and the iterated modified projection methods for nonlinear integral equations

    Article • Journal of Integral Equations and Applications, December 2013, Rocky Mountain Mathematics Consortium

    Paulo B. Vasconcelos

  48. Error Bounds for Low-Rank Approximations of the First Exponential Integral Kernel

    Article • Numerical Functional Analysis and Optimization, January 2013, Taylor & Francis

    Paulo B. Vasconcelos

  49. Eigenvalue computations in the context of data-sparse approximations of integral operators

    Article • Journal of Computational and Applied Mathematics, January 2013, Elsevier

    Paulo B. Vasconcelos

  50. Harnessing GPU Power from High-level Libraries: Eigenvalues of Integral Operators with SLEPc

    Article • Procedia Computer Science, January 2013, Elsevier

    Paulo B. Vasconcelos

  51. Convergence of Multipower Defect-Correction for spectral computations of integral operators

    Article • Applied Mathematics and Computation, November 2012, Elsevier

    Paulo B. Vasconcelos

  52. A Jacobi–Davidson type method with a correction equation tailored for integral operators

    Article • Numerical Algorithms, October 2012, Springer Science + Business Media

    Paulo B. Vasconcelos

  53. Nonconvex adjustment costs, hysteresis, and the macrodynamics of employment

    Article • Journal of Post Keynesian Economics, October 2012, Taylor & Francis

    Paulo B. Vasconcelos

  54. HYSTERESIS IN THE DYNAMICS OF EMPLOYMENT

    Article • Metroeconomica, April 2012, Wiley

    Paulo B. Vasconcelos

  55. A Parallel Implementation of the Jacobi-Davidson Eigensolver for Unsymmetric Matrices

    Article • January 2011, Springer Science + Business Media

    Paulo B. Vasconcelos

  56. Public deficits and economic growth

    Article • Economic Modelling, September 2009, Elsevier

    Professor Oscar Afonso, Paulo B. Vasconcelos

  57. Effects of Clustering Herds with Small-Sized Contemporary Groups in Dairy Cattle Genetic Evaluations

    Article • Journal of Dairy Science, January 2008, American Dairy Science Association

    Paulo B. Vasconcelos

  58. Parallel Eigensolvers for a Discretized Radiative Transfer Problem

    Article • January 2008, Springer Science + Business Media

    Paulo B. Vasconcelos

  59. Re-examining International Technological-Knowledge Diffusion

    Article • International Economic Journal, June 2007, Taylor & Francis

    Professor Oscar Afonso, Paulo B. Vasconcelos

  60. High Performance Computing for Computational Science - VECPAR 2006

    Article • January 2007, Springer Science + Business Media

    Paulo B. Vasconcelos

  61. Spectral refinement for clustered eigenvalues of quasi-diagonal matrices

    Article • Linear Algebra and its Applications, March 2006, Elsevier

    Paulo B. Vasconcelos

  62. Defect correction for spectral computations for a singular integral operator

    Article • Communications on Pure & Applied Analysis, January 2006, American Institute of Mathematical Sciences (AIMS)

    Paulo B. Vasconcelos

  63. Performance Evaluation of a Parallel Algorithm for a Radiative Transfer Problem

    Article • January 2006, Springer Science + Business Media

    Paulo B. Vasconcelos

  64. A numerical study of iterative refinement schemes for weakly singular integral equations

    Article • Applied Mathematics Letters, May 2005, Elsevier

    Paulo B. Vasconcelos

  65. Spectral refinement on quasi-diagonal matrices

    Article • Linear Algebra and its Applications, May 2005, Elsevier

    Paulo B. Vasconcelos

  66. New implementation of the Tau method for PDEs

    Article • Journal of Computational and Applied Mathematics, March 2004, Elsevier

    Paulo B. Vasconcelos

  67. A Parallel Code for Integral Equations on a Cluster of Computers

    Article • January 2004, Springer Science + Business Media

    Paulo B. Vasconcelos

  68. Integral Methods in Science and Engineering

    Article • January 2004, Springer Science + Business Media

    Paulo B. Vasconcelos

  69. An L1 refined projection approximate solution of the radiation transfer equation in stellar atmospheres

    Article • Journal of Computational and Applied Mathematics, March 2002, Elsevier

    Paulo B. Vasconcelos

  70. Preconditioned iterative methods for coupled discretizations of fluid flow problems

    Article • IMA Journal of Numerical Analysis, July 1998, Oxford University Press (OUP)

    Paulo B. Vasconcelos

  71. Preconditioners for nonsymmetric linear systems in domain decomposition applied to a coupled discretization of Navier-Stokes equations

    Article • January 1997, Springer Science + Business Media

    Paulo B. Vasconcelos

  72. Columnwise block LU factorization using blas kernels on VAX 6520/2VP

    Article • Computing Systems in Engineering, August 1995, Elsevier

    Paulo B. Vasconcelos

  73. Performance of a QR algorithm implementation on a multicluster of transputers

    Article • Computing Systems in Engineering, August 1995, Elsevier

    Paulo B. Vasconcelos