{ "id": "1103.2106", "version": "v1", "published": "2011-03-10T19:03:52.000Z", "updated": "2011-03-10T19:03:52.000Z", "title": "On a paper of K. Soundararajan on smooth numbers in arithmetic progressions", "authors": [ "Adam J. Harper" ], "comment": "18 pages", "categories": [ "math.NT" ], "abstract": "In a recent paper, K. Soundararajan showed, roughly speaking, that the integers smaller than x whose prime factors are less than y are asymptotically equidistributed in arithmetic progressions to modulus q, provided that y^{4\\sqrt{e}-\\delta} \\geq q and that y is neither too large nor too small compared with x. We show that these latter restrictions on y are unnecessary, thereby proving a conjecture of Soundararajan. Our argument uses a simple majorant principle for trigonometric sums to handle a saddle point that is close to 1.", "revisions": [ { "version": "v1", "updated": "2011-03-10T19:03:52.000Z" } ], "analyses": { "keywords": [ "arithmetic progressions", "smooth numbers", "soundararajan", "simple majorant principle", "saddle point" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1103.2106H" } } }