Portugaliæ Mathematica   EMIS ELibM Electronic Journals PORTUGALIAE
MATHEMATICA
Vol. 51, No. 1, pp. 47-62 (1994)

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Quasi-Orthogonality on the Unit Circle and Semi-Classical Forms

Manuel Alfaro and Leandro Moral

Dpto. de Matemáticas, Universidad de Zaragoza,
50009 Zaragoza - SPAIN Dpto. de Matemática Aplicada, Universidad de Zaragoza,
50009 Zaragoza - SPAIN

Abstract: In this paper we study a new concept of quasi-orthogonality on the unit circle, depending of the structure of the orthogonal polynomials on the unit circle, and we consider its relation with the semi-classical linear forms.

Keywords: Orthogonal polynomials; quasi-orthogonal polynomials; semi-classical linear forms.

Classification (MSC2000): 42C05

Full text of the article:

Electronic version published on: 29 Mar 2001. This page was last modified: 27 Nov 2007.

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