Ratio asymptotic of Hermite�Padé orthogonal polynomials for Nikishin systems. II

• Autores: Abey López García, Guillermo Tomás López Lagomasino
• Localización: Advances in mathematics, ISSN 0001-8708, Vol. 218, Nº 4, 2008, págs. 1081-1106
• Idioma: inglés
• DOI: 10.1016/j.aim.2008.02.007
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• Resumen

  • We prove ratio asymptotic for sequences of multiple orthogonal polynomials with respect to a Nikishin system of measures such that for each k, sk has constant sign on its support consisting on an interval , on which almost everywhere, and a set without accumulation points in