{ "id": "1811.07101", "version": "v2", "published": "2018-11-17T05:02:58.000Z", "updated": "2019-10-08T00:40:25.000Z", "title": "Probability density function of SDEs with unbounded and path--dependent drift coefficient", "authors": [ "Dai Taguchi", "Akihiro Tanaka" ], "comment": "49 pages", "categories": [ "math.PR" ], "abstract": "In this paper, we first prove that the existence of a solution of SDEs under the assumptions that the drift coefficient is of linear growth and path--dependent, and diffusion coefficient is bounded, uniformly elliptic and H\\\"older continuous. We apply Gaussian upper bound for a probability density function of a solution of SDE without drift coefficient and local Novikov condition, in order to use Maruyama--Girsanov transformation. The aim of this paper is to prove the existence with explicit representations (under linear/super--linear growth condition), Gaussian two--sided bound and H\\\"older continuity (under sub--linear growth condition) of a probability density function of a solution of SDEs with path--dependent drift coefficient. As an application of explicit representation, we provide the rate of convergence for an Euler--Maruyama (type) approximation, and an unbiased simulation scheme.", "revisions": [ { "version": "v2", "updated": "2019-10-08T00:40:25.000Z" } ], "analyses": { "subjects": [ "65C30", "62G07", "35K08", "60H35" ], "keywords": [ "probability density function", "path-dependent drift coefficient", "explicit representation", "linear/super-linear growth condition", "apply gaussian upper bound" ], "note": { "typesetting": "TeX", "pages": 49, "language": "en", "license": "arXiv", "status": "editable" } } }