3 citations · 4 across the 6 of their papers we have counts for
6 papers
Inverse results on row sequences of Hermite-Padé approximation
G. López Lagomasino, Y. Zaldivar Gerpe
We consider row sequences of (type II) Hermite-Padé approximations with common denominator associated with a vector of formal power expansions about the origin. In terms…
Inverse Theorem on Row Sequences of Linear Padé-orthogonal Approximation
N. Bosuwan, G. López Lagomasino
We give necessary and sufficient conditions for the convergence with geometric rate of the denominators of linear Padé-orthogonal approximants corresponding to a measure supported…
Strong asymptotics for the Pollaczek multiple orthogonal polynomials ensembles
A. I. Aptekarev, G. Lopez Lagomasino, A. Martinez-Finkelshtein
We study the asymptotic properties of a class of multiple orthogonal polynomials with respect to a Nikishin system generated by two measures with unbounded supports ($…
On the convergence of type I Hermite-Padé approximants for a class of meromorphic functions
G. López Lagomasino, S. Medina Peralta
We study the convergence of type I Hermite-Padé approximation for a class of meromorphic functions obtained by adding a vector of rational functions with real coefficients to a Nik…
Convergence of row sequences of simultaneous Fourier-Padé approximation
J. Cacoq, G. López Lagomasino
We consider row sequences of simultaneous rational approximations constructed in terms of Fourier expansions and prove a Montessus de Ballore type theorem.
Nikishin systems are perfect. Case of unbounded and touching supports
Fidalgo Prieto, Ulises, G. López Lagomasino
K. Mahler introduced the concept of perfect systems in the theory of simultaneous Hermite-Padé approximation of analytic functions. Recently, we proved that Nikishin systems, gener…