Explicit inverses of some tridiagonal matrices CM da Fonseca, J Petronilho Linear Algebra and its Applications 325 (1), 7-21, 2001 | 194 | 2001 |

Classical orthogonal polynomials: a functional approach F Marcellán, A Branquinho, J Petronilho Acta Applicandae Mathematica 34, 283-303, 1994 | 182 | 1994 |

Explicit inverse of a tridiagonal k− Toeplitz matrix CM da Fonseca, J Petronilho Numerische Mathematik 100 (3), 457-482, 2005 | 93 | 2005 |

Orthogonal polynomials and coherent pairs: the classical case F Marcellán, J Petronilho Indagationes Mathematicae 6 (3), 287-307, 1995 | 76 | 1995 |

Eigenproblems for tridiagonal 2-Toeplitz matrices and quadratic polynomial mappings F Marcellán, J Petronilho Linear algebra and its applications 260, 169-208, 1997 | 54 | 1997 |

On the linear functionals associated to linearly related sequences of orthogonal polynomials J Petronilho Journal of mathematical analysis and applications 315 (2), 379-393, 2006 | 48 | 2006 |

On the solution of some distributional differential equations: existence and characterizations of the classical moment functionals F Marcellán, J Petronilho Integral Transforms and Special Functions 2 (3), 185-218, 1994 | 41 | 1994 |

On some tridiagonal k-Toeplitz matrices: Algebraic and analytical aspects. Applications R Álvarez-Nodarse, J Petronilho, NR Quintero Journal of computational and applied mathematics 184 (2), 518-537, 2005 | 39 | 2005 |

On orthogonal polynomials obtained via polynomial mappings MN De Jesus, J Petronilho Journal of Approximation Theory 162 (12), 2243-2277, 2010 | 37 | 2010 |

On linearly related sequences of derivatives of orthogonal polynomials MN De Jesus, J Petronilho Journal of mathematical analysis and applications 347 (2), 482-492, 2008 | 35 | 2008 |

Generic formulas for the values at the singular points of some special monic classical Hq, ω-orthogonal polynomials J Petronilho Journal of computational and applied mathematics 205 (1), 314-324, 2007 | 35 | 2007 |

Orthogonal polynomials and cubic polynomial mappings. II. The positive-definite case F Marcellán, J Petronilho Communications in the Analytic Theory of Continued Fractions 9, 11-20, 2001 | 34* | 2001 |

Orthogonal polynomials and cubic polynomial mappings. I. F Marcellán, J Petronilho Communications in the Analytic Theory of Continued Fractions 8, 88-116, 2000 | 33 | 2000 |

(M, N)-coherent pairs of order (m, k) and Sobolev orthogonal polynomials MN de Jesus, F Marcellán, J Petronilho, NC Pinzón-Cortés Journal of Computational and Applied Mathematics 256, 16-35, 2014 | 32 | 2014 |

Sobolev orthogonal polynomials and (M, N)-coherent pairs of measures MN de Jesus, J Petronilho Journal of Computational and Applied Mathematics 237, 83-101, 2013 | 29 | 2013 |

Orthogonal polynomials and quadratic transformations F Marcellán, J Petronilho Portugaliae Mathematica 56 (1), 81-114, 1999 | 28 | 1999 |

WKB approximation and Krall-type orthogonal polynomials R Álvarez-Nodarse, F Marcellán, J Petronilho Acta Applicandae Mathematica 54, 27-58, 1998 | 27 | 1998 |

On the functional equation for classical orthogonal polynomials on lattices K Castillo, D Mbouna, J Petronilho Journal of Mathematical Analysis and Applications 515 (1), 126390, 2022 | 25 | 2022 |

What is beyond coherent pairs of orthogonal polynomials? F Marcellán, JC Petronilho, TE Pérez, MA Piñar Journal of Computational and Applied Mathematics 65 (1-3), 267-277, 1995 | 23 | 1995 |

Variations around Jackson’s quantum operator JL Cardoso, J Petronilho Methods and Applications of Analysis 22 (4), 343-358, 2015 | 19 | 2015 |