{ "id": "1711.05029", "version": "v1", "published": "2017-11-14T09:51:49.000Z", "updated": "2017-11-14T09:51:49.000Z", "title": "Analytic scattering theory for Jacobi operators and Bernstein-Szegö asymptotics of orthogonal polynomials", "authors": [ "D. R. Yafaev" ], "comment": "Dedicated to the memory of Lyudvig Dmitrievich Faddeev", "categories": [ "math.CA", "math.FA", "math.SP" ], "abstract": "We study semi-infinite Jacobi matrices $H=H_{0}+V$ corresponding to trace class perturbations $V$ of the \"free\" discrete Schr\\\"odinger operator $H_{0}$. Our goal is to construct various spectral quantities of the operator $H$, such as the weight function, eigenfunctions of its continuous spectrum, the wave operators for the pair $H_{0}$, $H$, the scattering matrix, the spectral shift function, etc. This allows us to find the asymptotic behavior of the orthonormal polynomials $P_{n}(z)$ associated to the Jacobi matrix $H $ as $n\\to\\infty$. In particular, we consider the case of $z$ inside the spectrum $[-1,1]$ of $H_{0}$ when this asymptotics has an oscillating character of the Bernstein-Szeg\\\"o type and the case of $z$ at the end points $\\pm 1$.", "revisions": [ { "version": "v1", "updated": "2017-11-14T09:51:49.000Z" } ], "analyses": { "subjects": [ "33C45", "39A70", "47A40", "47B39" ], "keywords": [ "analytic scattering theory", "jacobi operators", "orthogonal polynomials", "study semi-infinite jacobi matrices", "jacobi matrix" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }