Nikishin systems are perfect UF Prieto, GL Lagomasino Constructive Approximation 34 (3), 297, 2011 | 61 | 2011 |

Multiple orthogonal polynomials of mixed type: Gauss–Borel factorization and the multi-component 2D Toda hierarchy C Álvarez-Fernández, UF Prieto, M Manas Advances in Mathematics 227 (4), 1451-1525, 2011 | 47 | 2011 |

The multicomponent 2D Toda hierarchy: generalized matrix orthogonal polynomials, multiple orthogonal polynomials and Riemann–Hilbert problems C Álvarez-Fernández, U Fidalgo, M Manas Inverse Problems 26 (5), 055009, 2010 | 33 | 2010 |

On perfect Nikishin systems UF Prieto, GL Lagomasino Computational Methods and Function Theory 2, 415-426, 2002 | 31 | 2002 |

Hermite–Padé approximation and simultaneous quadrature formulas UF Prieto, J Illán, GL Lagomasino Journal of Approximation Theory 126 (2), 171-197, 2004 | 27 | 2004 |

Mixed type multiple orthogonal polynomials for two Nikishin systems UF Prieto, AL García, GL Lagomasino, VN Sorokin Constructive Approximation 32 (2), 255-306, 2010 | 24 | 2010 |

Rate of convergence of generalized Hermite–Padé approximants of Nikishin systems UF Prieto, GL Lagomasino Constructive approximation 23 (2), 165-196, 2006 | 23 | 2006 |

General results on the convergence of multipoint Hermite-Padé approximants of Nikishin systems UF Prieto, GL Lagomasino Constructive Approximation 25 (1), 89-107, 2007 | 19 | 2007 |

Nikishin systems are perfect. The case of unbounded and touching supports UF Prieto, GL Lagomasino Journal of Approximation Theory 163 (6), 779-811, 2011 | 14 | 2011 |

Hermite-Padé approximation for certain systems of meromorphic functions GL López, SM Peralta, UF Prieto Sbornik: Mathematics 206 (2), 225, 2015 | 12 | 2015 |

Convergence and computation of simultaneous rational quadrature formulas UF Prieto, JRI González, GL Lagomasino Numerische Mathematik 106 (1), 99-128, 2007 | 12 | 2007 |

Hermite-Padé approximants and simultaneous quadrature formulas U Fidalgo, J Illán, GL Lagomasino J. Approx. Theory 126, 171-197, 2004 | 12 | 2004 |

A general lower bound for the relaxation of an optimal design problem with a general quadratic cost functional, and a general linear state equation UF Prieto, P Pedregal Journal of Convex Analysis 19 (1), 281-294, 2012 | 5 | 2012 |

Riemann–Hilbert problem associated with Angelesco systems A Branquinho, U Fidalgo, AF Moreno Journal of computational and applied mathematics 233 (3), 643-651, 2009 | 5 | 2009 |

Mixed type multiple orthogonal polynomials: perfectness and interlacing properties of zeros U Fidalgo, SM Peralta, JM Ceniceros Linear Algebra and its Applications 438 (3), 1229-1239, 2013 | 4 | 2013 |

A general lower bound for the relaxation of an optimal design problem in conductivity with a quadratic cost functional U Fidalgo, P Pedregal Preprint, 14-2007, 2007 | 3 | 2007 |

An extension of Markov’s Theorem AF Branquinho, A., Fidalgo, U., & Moreno Proceedings of the American Mathematical Society 142 (10), 3491-3503., 2014 | 1 | 2014 |

Hermite-Pad\'e approximation for certain systems of meromorphic functions U Fidalgo Prieto, G López Lagomasino, S Medina Peralta arXiv preprint arXiv:1310.7010, 2013 | 1 | 2013 |

On perfect Nikishin systems U Fidalgo Prieto, G López Lagomasino Herldermann Verlag, 2002 | 1 | 2002 |

Asymptotic of Cauchy biorthogonal polynomials U Fidalgo, GL Lagomasino, SM Peralta arXiv preprint arXiv:1904.00126, 2019 | | 2019 |