Multipoint Schur algorithm and orthogonal rational functions: convergence properties, I
Langue
en
Article de revue
Ce document a été publié dans
Journal d'analyse mathématique. 2011-09 n° 1, p. 207-253
Springer
Résumé en anglais
Classical Schur analysis is intimately connected to the theory of orthogonal polynomials on the circle [Simon, 2005]. We investigate here the connection between multipoint Schur analysis and orthogonal rational functions. ...Lire la suite >
Classical Schur analysis is intimately connected to the theory of orthogonal polynomials on the circle [Simon, 2005]. We investigate here the connection between multipoint Schur analysis and orthogonal rational functions. Specifically, we study the convergence of the Wall rational functions via the development of a rational analogue to the Szeg\H o theory, in the case where the interpolation points may accumulate on the unit circle. This leads us to generalize results from [Khrushchev,2001], [Bultheel et al., 1999], and yields asymptotics of a novel type.< Réduire
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