Fourier-Padé approximants for Angelesco systems
M. Bello-Hernández, G. López-Lagimasino, J. Mínguez-Ceniceros
Abstract
In this paper we study linear and non-linear Fourier-Padé approximation for Angelesco systems of functions. This construction is similar to that of Hermite-Padé approximation. Instead of considering power series expansions of the functions in the system, we take their expansion in a series of orthogonal polynomials.