{ "id": "0705.0135", "version": "v1", "published": "2007-05-01T16:30:48.000Z", "updated": "2007-05-01T16:30:48.000Z", "title": "Packing-Dimension Profiles and Fractional Brownian Motion", "authors": [ "Davar Khoshnevisan", "Yimin Xiao" ], "categories": [ "math.PR", "math.CA" ], "abstract": "In order to compute the packing dimension of orthogonal projections Falconer and Howroyd (1997) introduced a family of packing dimension profiles ${\\rm Dim}_s$ that are parametrized by real numbers $s>0$. Subsequently, Howroyd (2001) introduced alternate $s$-dimensional packing dimension profiles $\\hbox{${\\rm P}$-$\\dim$}_s$ and proved, among many other things, that $\\hbox{${\\rm P}$-$\\dim$}_s E={\\rm Dim}_s E$ for all integers $s>0$ and all analytic sets $E\\subseteq\\R^N$. The goal of this article is to prove that $\\hbox{${\\rm P}$-$\\dim$}_s E={\\rm Dim}_s E$ for all real numbers $s>0$ and analytic sets $E\\subseteq\\R^N$. This answers a question of Howroyd (2001, p. 159). Our proof hinges on a new property of fractional Brownian motion.", "revisions": [ { "version": "v1", "updated": "2007-05-01T16:30:48.000Z" } ], "analyses": { "subjects": [ "60G15", "60G17", "28A80" ], "keywords": [ "fractional brownian motion", "packing-dimension profiles", "analytic sets", "real numbers", "dimensional packing dimension profiles" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0705.0135K" } } }