Hermite-Pade' approximation and simultaneous quadrature formulas. - Ulises Fidalgo Prieto; Jesús Illán; Guillermo López Lagomasino (J. Approx. Theory, 2004)

Convergence and computation of simultaneous rational quadrature formulas. - Ulises Fidalgo Prieto; Jesús R. Illán-González; Guillermo López Lagomasino (Numerische Mathematik, 2007)

Riemann-Hilbert problem associated with Angelesco systems. - Amílcar José Pinto Lopes Branquinho; Ulises Fidalgo; Ana Pilar Foulquié Moreno (J. Comput. Appl. Math., 2009)

Generalized Hermite-Padé approximation for Nikishin systems of three functions. - Ulises Fidalgo Prieto; Guillermo López Lagomasino (J. Comput. Appl. Math., 2010)

Nikishin systems are perfect. The case of unbounded and touching supports. - Ulises Fidalgo Prieto; Guillermo López Lagomasino (J. Approx. Theory, 2011)

Convergent interpolatory quadrature rules and orthogonal polynomials of varying measures. - Ulises Fidalgo; Erwin Miña Díaz (Numer. Algorithms, 2018)

Convergent non complete interpolatory quadrature rules. - Ulises Fidalgo; Jacob Olson (CoRR, 2020)

A multi-orthogonal polynomials' approach to bulk queueing theory. - Ulises Fidalgo (CoRR, 2021)