{ "id": "1406.0005", "version": "v3", "published": "2014-05-30T20:00:06.000Z", "updated": "2014-08-19T19:43:50.000Z", "title": "Exact computation of the CDF of the Euclidean distance between a point and a random variable uniformly distributed in disks, balls, or polyhedrons and application to PSHA", "authors": [ "Vincent Guigues" ], "categories": [ "math.PR" ], "abstract": "We consider a random variable expressed as the Euclidean distance between an arbitrary point and a random variable uniformly distributed in a closed and bounded set of a three-dimensional Euclidean space. Four cases are considered for this set: a union of disjoint disks, a union of disjoint balls, a union of disjoint line segments, and the boundary of a polyhedron. In the first three cases, we provide closed-form expressions of the cumulative distribution function and the density. In the last case, we propose an algorithm with complexity O(n ln n), n being the number of edges of the polyhedron, that computes exactly the cumulative distribution function. An application of these results to probabilistic seismic hazard analysis and extensions are discussed.", "revisions": [ { "version": "v3", "updated": "2014-08-19T19:43:50.000Z" } ], "analyses": { "subjects": [ "60D05", "65D99", "51N20", "65D30", "86A15" ], "keywords": [ "random variable", "euclidean distance", "exact computation", "polyhedron", "cumulative distribution function" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1406.0005G" } } }