Comptes Rendus
Mathematical Analysis
Orthogonal polynomials and a generalized Szegő condition
[Polynômes orthogonaux et la condition de Szegő généralisée.]
Comptes Rendus. Mathématique, Volume 339 (2004) no. 4, pp. 241-244.

Les propriétés asymptotiques des polynômes orthogonaux de la classe de Szegő sont très bien étudiées. Nous obtenons les asymptotiques des polynômes orthogonaux appartenant à une classe considérablement plus large. Ensuite, nous appliquons cette information à l'étude du comportement spectral de ces derniers.

Asymptotical properties of orthogonal polynomials from the so-called Szegő class are very well-studied. We obtain asymptotics of orthogonal polynomials from a considerably larger class and we apply this information to the study of their spectral behavior.

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DOI : 10.1016/j.crma.2004.06.004
Sergey Denisov 1 ; Stanislas Kupin 2

1 Department of Mathematics 253-37, Caltech, Pasadena, CA 91125, USA
2 CMI, université de Provence, 39, rue Joliot Curie, 13453 Marseille cedex 13, France
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Sergey Denisov; Stanislas Kupin. Orthogonal polynomials and a generalized Szegő condition. Comptes Rendus. Mathématique, Volume 339 (2004) no. 4, pp. 241-244. doi : 10.1016/j.crma.2004.06.004. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2004.06.004/

[1] M. Cantero; L. Moral; L. Velázquez Five-diagonal matrices and zeros of orthogonal polynomials on the unit circle, Linear Algebra Appl., Volume 362 (2003), pp. 29-56

[2] D. Damanik; R. Killip; B. Simon Necessary and sufficient conditions in the spectral theory of Jacobi matrices and Schrödinger operators, Int. Math. Res. Notices, Volume 22 (2004), pp. 1087-1097

[3] Ya. Geronimus Orthogonal Polynomials, Consultants Bureau, New York, 1961

[4] S. Khrushchev Schur's algorithm, orthogonal polynomials, and convergence of Wall's continued fractions in L2(T), J. Approx. Theory, Volume 108 (2001) no. 2, pp. 161-248

[5] F. Nazarov, F. Peherstorfer, A. Volberg, P. Yuditskii, On generalized sum rules for Jacobi matrices, submitted for publication

[6] B. Simon, Orthogonal polynomials on the unit circle, Amer. Math. Soc. Colloq. Publ., in press

[7] G. Szegő Orthogonal Polynomials, American Mathematical Society, Providence, 1975

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