{ "id": "0905.1975", "version": "v1", "published": "2009-05-12T22:06:13.000Z", "updated": "2009-05-12T22:06:13.000Z", "title": "On the first passage time density of a continuous Martingale over a moving boundary", "authors": [ "Gerardo Hernandez-del-Valle" ], "categories": [ "math.PR", "math.AP" ], "abstract": "In this paper we derive the density $\\varphi$ of the first time $T$ that a continuous martingale $M$ with non-random quadratic variation $_\\cdot:=\\int_0^\\cdot h^2(u)du$ hits a moving boundary $f$ which is twice continuously differentiable, and $f'/h\\in\\mathbb{C}^2[0,\\infty)$. Thus, this work is an extension to case in which $M$ is in fact a one-dimensional standard Brownian motion $B$, as studied in Hernandez-del-Valle (2007).", "revisions": [ { "version": "v1", "updated": "2009-05-12T22:06:13.000Z" } ], "analyses": { "subjects": [ "60J65", "45D05", "60J60", "45G15" ], "keywords": [ "first passage time density", "moving boundary", "continuous martingale", "one-dimensional standard brownian motion", "non-random quadratic variation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0905.1975H" } } }