{ "id": "1602.01634", "version": "v1", "published": "2016-02-04T11:14:39.000Z", "updated": "2016-02-04T11:14:39.000Z", "title": "Salem sets, equidistribution and arithmetic progressions", "authors": [ "Paul Potgieter" ], "comment": "11 pages", "categories": [ "math.CA" ], "abstract": "Arithmetic progressions of length $3$ may be found in compact subsets of the reals that satisfy certain Fourier-dimensional as well as Hausdorff-dimensional requirements. It has been shown that a very similar result holds in the integers under analogous conditions, with Fourier dimension being replaced by the decay of a discrete Fourier transform. By using a construction of Salem's, we show that this correspondence can be made more precise. Specifically, we show that a subset of the integers can be mapped to a compact subset of the continuum in a way which preserves equidistribution properties as well as arithmetic progressions of arbitrary length, and vice versa. We use the method to characterise Salem sets in $\\mathbb{R}$ through discrete, equidistributed approximations. Finally, we discuss how this method sheds light on the generation of Salem sets by stationary stochastic processes.", "revisions": [ { "version": "v1", "updated": "2016-02-04T11:14:39.000Z" } ], "analyses": { "subjects": [ "42B05", "11B25", "28A78", "42A38", "43A46", "60G17" ], "keywords": [ "arithmetic progressions", "compact subset", "discrete fourier transform", "similar result holds", "preserves equidistribution properties" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160201634P" } } }