{ "id": "1811.09254", "version": "v1", "published": "2018-11-22T17:45:55.000Z", "updated": "2018-11-22T17:45:55.000Z", "title": "Semiclassical asymptotic behavior of orthogonal polynomials", "authors": [ "D. R. Yafaev" ], "categories": [ "math.CA", "math.FA", "math.SP" ], "abstract": "Our goal is to find asymptotic formulas for orthonormal polynomials $P_{n}(z)$ with the recurrence coefficients slowly stabilizing as $n\\to\\infty$. To that end, we develop spectral theory of Jacobi operators with long-range coefficients and study the corresponding second order difference equation. We suggest an Ansatz for its solutions playing the role of the semiclassical Green-Liouville Ansatz for solutions of the Schr\\\"odinger equation. The formulas obtained for $P_{n}(z)$ as $n\\to\\infty$ generalize the classical Bernstein-Szeg\\\"o asymptotic formulas.", "revisions": [ { "version": "v1", "updated": "2018-11-22T17:45:55.000Z" } ], "analyses": { "subjects": [ "33C45", "39A70", "47A40", "47B39" ], "keywords": [ "semiclassical asymptotic behavior", "orthogonal polynomials", "asymptotic formulas", "corresponding second order difference equation", "spectral theory" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }