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Szegő transformations and Nth order associated polynomials on the unit circle

✍ Scribed by L. Garza; F. Marcellán

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
641 KB
Volume
57
Category
Article
ISSN
0898-1221

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✦ Synopsis

In this paper we analyze the Stieltjes functions defined by the Szegő inverse transformation of a nontrivial probability measure supported on the unit circle such that the corresponding sequence of orthogonal polynomials is defined by either backward or forward shifts in their Verblunsky parameters. Such polynomials are called anti-associated (respectively associated) orthogonal polynomials. Thus, rational spectral transformations appear in a natural way.

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