{ "id": "0911.5407", "version": "v1", "published": "2009-11-28T17:18:54.000Z", "updated": "2009-11-28T17:18:54.000Z", "title": "Asymptotic behavior and zero distribution of Carleman orthogonal polynomials", "authors": [ "Peter Dragnev", "Erwin Miña-Díaz" ], "comment": "23 pages, 4 figures", "categories": [ "math.CA", "math.CV" ], "abstract": "Let $L$ be an analytic Jordan curve and let $\\{p_n(z)\\}_{n=0}^\\infty$ be the sequence of polynomials that are orthonormal with respect to the area measure over the interior of $L$. A well-known result of Carleman states that \\label{eq12} \\lim_{n\\to\\infty}\\frac{p_n(z)}{\\sqrt{(n+1)/\\pi} [\\phi(z)]^{n}}= \\phi'(z) locally uniformly on certain open neighborhood of the closed exterior of $L$, where $\\phi$ is the canonical conformal map of the exterior of $L$ onto the exterior of the unit circle. In this paper we extend the validity of (\\ref{eq12}) to a maximal open set, every boundary point of which is an accumulation point of the zeros of the $p_n$'s. Some consequences on the limiting distribution of the zeros are discussed, and the results are illustrated with two concrete examples and numerical computations.", "revisions": [ { "version": "v1", "updated": "2009-11-28T17:18:54.000Z" } ], "analyses": { "subjects": [ "42C05", "30E10", "30E15", "30C10", "30C15" ], "keywords": [ "carleman orthogonal polynomials", "zero distribution", "asymptotic behavior", "analytic jordan curve", "maximal open set" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0911.5407D" } } }