Convergence of Multipoint Padé-type Approximants. - Bernardo de la Calle Ysern; Guillermo López Lagomasino (J. Approx. Theory, 2001)

Determining radii of meromorphy via orthogonal polynomials on the unit circle. - Dolores Barrios Rolanía; Guillermo López Lagomasino; Edward B. Saff (J. Approx. Theory, 2003)

Normal indices in Nikishin systems. - Amílcar José Pinto Lopes Branquinho; Jorge Bustamante; Ana Pilar Foulquié Moreno; Guillermo López Lagomasino (J. Approx. Theory, 2003)

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

Asymptotic of extremal polynomials in the complex plane. - Guillermo López Lagomasino; I. Pérez Izquierdo; Héctor Pijeira Cabrera (J. Approx. Theory, 2005)

On the limit behavior of recurrence coefficients for multiple orthogonal polynomials. - Alexander I. Aptekarev; Valeriy A. Kalyagin; Guillermo López Lagomasino; I. A. Rocha (J. Approx. Theory, 2006)

Logarithmic asymptotics of contracted Sobolev extremal polynomials on the real line. - Guillermo López Lagomasino; F. Marcellán Español; Héctor Pijeira Cabrera (J. Approx. Theory, 2006)

Ratio and relative asymptotics of polynomials orthogonal with respect to varying Denisov-type measures. - Dolores Barrios Rolanía; Bernardo de la Calle Ysern; Guillermo López Lagomasino (J. Approx. Theory, 2006)

Asymptotic behavior of solutions of general three term recurrence relations. - Dolores Barrios Rolanía; Guillermo López Lagomasino (Adv. Comput. Math., 2007)

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

Relative asymptotic of multiple orthogonal polynomials for Nikishin systems. - Abey López García; Guillermo López Lagomasino (J. Approx. Theory, 2009)

Stieltjes-type polynomials on the unit circle. - Bernardo de la Calle Ysern; Guillermo López Lagomasino; Lothar Reichel (Math. Comput., 2009)

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

Computation of conformal representations of compact Riemann surfaces. - Guillermo López Lagomasino; Domingo Pestana; José M. Rodríguez 001; Dmitry Yakubovich (Math. Comput., 2010)

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

Incomplete Padé approximation and convergence of row sequences of Hermite-Padé approximants. - J. Cacoq; Bernardo de la Calle Ysern; Guillermo López Lagomasino (J. Approx. Theory, 2013)

OPSFA'11. - Guillermo López Lagomasino; Andrei Martínez-Finkelshtein; Paul Nevai; Walter Van Assche (J. Approx. Theory, 2013)

Andrei Aleksandrovich Gonchar November 21, 1931-October 10, 2012. - Guillermo López Lagomasino; Andrei Martínez-Finkelshtein; Paul Nevai; Edward B. Saff (J. Approx. Theory, 2013)

Foreword to the proceedings of the OrthoQuad 2014 conference. - Adhemar Bultheel; Guillermo López Lagomasino; Francisco Marcellán; Olav Njåstad; Ramón Orive (J. Comput. Appl. Math., 2015)

On the convergence of type I Hermite-Padé approximants for rational perturbations of a Nikishin system. - Guillermo López Lagomasino; S. Medina Peralta (J. Comput. Appl. Math., 2015)

Determining system poles using row sequences of orthogonal Hermite-Padé approximants. - Nattapong Bosuwan; Guillermo López Lagomasino (J. Approx. Theory, 2018)

Nikishin systems on star-like sets: Ratio asymptotics of the associated multiple orthogonal polynomials. - Abey López García; Guillermo López Lagomasino (J. Approx. Theory, 2018)

Nikishin systems on star-like sets: Ratio asymptotics of the associated multiple orthogonal polynomials, II. - Abey López García; Guillermo López Lagomasino (J. Approx. Theory, 2020)

Relative asymptotics of multiple orthogonal polynomials for Nikishin systems of two measures. - Abey López García; Guillermo López Lagomasino (J. Approx. Theory, 2025)