{ "id": "2103.14307", "version": "v1", "published": "2021-03-26T07:45:15.000Z", "updated": "2021-03-26T07:45:15.000Z", "title": "On the asymptotic behavior of Sudler products along subsequences", "authors": [ "Mario Neumüller" ], "categories": [ "math.NT" ], "abstract": "Let $\\alpha \\in (0,1)$ and irrational. We investigate the asymptotic behaviour of sequences of certain trigonometric products (Sudler products) $(P_N(\\alpha))_{N\\in\\mathbb{N}}$ with $$P_N(\\alpha) =\\prod_{r=1}^N|2\\sin(\\pi r \\alpha)|.$$ More precisely, we are interested in the asymptotic behaviour of subsequences of the form $(P_{q_n(\\alpha)}(\\alpha))_{n\\in\\mathbb{N}}$, where $q_n(\\alpha)$ is the $n$th best approximation denominator of $\\alpha$. Interesting upper and lower bounds for the growth of these subsequences are given, and convergence results, obtained by Mestel and Verschueren (see arXiv:1411.2252math[DS]) and Grepstad and Neum\\\"uller (see arXiv:1801.09416[math.NT]), are generalized to the case of irrationals with bounded continued fraction coefficients.", "revisions": [ { "version": "v1", "updated": "2021-03-26T07:45:15.000Z" } ], "analyses": { "subjects": [ "26D05", "41A60", "11J70", "11L15", "11K31" ], "keywords": [ "sudler products", "asymptotic behavior", "subsequences", "asymptotic behaviour", "th best approximation denominator" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }