Abstract (EN):
We present some numerical results about the localization of zeros and poles of Chebyshev-Pade approximants from functions perturbed with random series. These results are a natural generalization of the Froissart's numerical experiments with power series. Our results suggest that the Froissart doublets of Chebyshev-Pade approximants are located, with probability one, on the Joukowski transform image of the natural boundary of the random power series.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Contacto:
jem@isep.ipp.pt; jma@isep.ipp.pt; mjsrodri@fc.up.pt
Nº de páginas:
12