Research Interests Multiple orthogonal polynomials, Minimal energy problems, RiemannHilbert problems, Random matrices.
Papers  (with G. López Lagomasino) Nikishin systems on starlike sets: ratio asymptotics of the associated multiple orthogonal polynomials, arXiv:1612.01149.
 (with E. MiñaDíaz) Nikishin systems on starlike sets: algebraic properties and weak asymptotics of the associated multiple orthogonal polynomials, arXiv:1606.08047.
 (with D.A. Wagner) Asymptotics of the energy of sections of greedy energy sequences on the unit circle, and some conjectures for general sequences , Comput. Methods Funct. Theory 15 (2015), 721750.
 (with A.B.J. Kuijlaars) The normal matrix model with a monomial potential, a vector equilibrium problem, and multiple orthogonal polynomials on a star, Nonlinearity 28 (2015), 347406.
 (with S. Delvaux) High order threeterm recursions, RiemannHilbert minors and Nikishin systems on starlike sets, Constr. Approx., 37, 2013, 383453.
 (with S. Delvaux and G. López Lagomasino) A family of Nikishin systems with periodic recurrence coefficients, Sbornik:Math., 204, 2013, 4374.
 Asymptotics of multiple orthogonal polynomials for a system of two measures supported on a starlike set, Journal of Approximation Theory, 163, 2011, 1146–1184.
 (with E.B. Saff) Asymptotics of Greedy Energy Points, Mathematics of Computation, 79, 2010, 2287–2316.
 Greedy energy points with external fields, Recent Trends in Orthogonal Polynomials and Approximation Theory, Contemporary Mathematics, vol. 507, AMS, Providence, RI, 2010, 189–207.
 (with U. Fidalgo Prieto, G. López Lagomasino, and V.N. Sorokin) Mixed type multiple orthogonal polynomials for two Nikishin systems, Constructive Approximation, 32, 2010, 255–306.
 (with G. López Lagomasino) Relative asymptotics of multiple orthogonal polynomials for Nikishin systems, Journal of Approximation Theory, 158, 2009, 214–241.
 (with G. López Lagomasino) Ratio asymptotic of HermitePadé orthogonal polynomials for Nikishin systems II, Advances in Mathematics, 218, 2008, 1081–1106.
 (with M.A. Jiménez Pozo) Aplicaciones del Álgebra de Boole Métrica a la Teoría de la Medida, La Gaceta de la RSME, 9.1, 2006, 59–68 (in Spanish).
