{ "id": "1206.4737", "version": "v1", "published": "2012-06-20T23:15:46.000Z", "updated": "2012-06-20T23:15:46.000Z", "title": "Plancherel_Rotach Asymptotics for q-Orthogonal Polynomials", "authors": [ "Mourad E. H. Ismail", "Xin Li" ], "comment": "16 pages", "categories": [ "math.CA" ], "abstract": "We establish the Plancherel-Rotach-type asymptotics around the largest zero (the soft edge asymptotics) for some classes of polynomials satisfying three-term recurrence relations with exponentially increasing coefficients. As special cases, our results include this type of asymptotics for q^{-1}-Hermite polynomials of Askey, Ismail and Masson, q-Laguerre polynomials, and the Stieltjes-Wigert polynomials. We also introduce a one parameter family of solutions to the q-difference equation of the Ramanujan function.", "revisions": [ { "version": "v1", "updated": "2012-06-20T23:15:46.000Z" } ], "analyses": { "subjects": [ "33D45", "41A60", "65Q30" ], "keywords": [ "q-orthogonal polynomials", "polynomials satisfying three-term recurrence relations", "soft edge asymptotics", "largest zero", "plancherel-rotach-type asymptotics" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1206.4737I" } } }