{ "id": "1305.0722", "version": "v1", "published": "2013-05-03T14:29:05.000Z", "updated": "2013-05-03T14:29:05.000Z", "title": "A note on the series representation for the density of the supremum of a stable process", "authors": [ "Daniel Hackmann", "Alexey Kuznetsov" ], "comment": "6 pages", "categories": [ "math.PR" ], "abstract": "An absolutely convergent double series representation for the density of the supremum of $\\alpha$-stable Levy process is given in [3, Theorem 2] for almost all irrational $\\alpha$. This result cannot be made stronger in the following sense: the series does not converge absolutely when $\\alpha$ belongs to a certain subset of irrational numbers of Lebesgue measure zero (see [6, Theorem 2]). Our main result in this note shows that for every irrational $\\alpha$ there is a way to rearrange the terms of the double series, so that it converges to the density of the supremum. We show how one can establish this stronger result by introducing a simple yet non-trivial modification in the original proof of [3,Theorem 2].", "revisions": [ { "version": "v1", "updated": "2013-05-03T14:29:05.000Z" } ], "analyses": { "subjects": [ "60G52" ], "keywords": [ "stable process", "absolutely convergent double series representation", "irrational", "lebesgue measure zero", "stronger result" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1305.0722H" } } }