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On time dependent orthogonal polynomials on the unit circle

Two index formulas for operators defined by infinite band matrices are proved. These results may be interpreted as a generalization of the classical theorem of M. G. Krein for orthogonal polynomials. The proofs are based on dichotomy and nonstationary inertia theory.

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Bibliographic Details
Main Authors: Ben-Artzi, A., Gohberg, I.
Format: Article
Language:English
Published: Інститут математики НАН України 1994
Series:Український математичний журнал
Subjects:
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/152530
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