{ "id": "1902.05712", "version": "v1", "published": "2019-02-15T07:51:53.000Z", "updated": "2019-02-15T07:51:53.000Z", "title": "On the Euler--Maruyama scheme for degenerate stochastic differential equations with non-sticky boundary condition", "authors": [ "Dai Taguchi", "Akihiro Tanaka" ], "comment": "18 pages", "categories": [ "math.PR" ], "abstract": "The aim of this paper is to study weak and strong convergence of the Euler--Maruyama scheme for a solution of one-dimensional degenerate stochastic differential equation $\\mathrm{d} X_t=\\sigma(X_t) \\mathrm{d} W_t$ with non-sticky boundary condition. For proving this, we first prove that the Euler--Maruyama scheme also satisfies non-sticky boundary condition. As an example, we consider stochastic differential equation $\\mathrm{d} X_t=|X_t|^{\\alpha} \\mathrm{d} W_t$, $\\alpha \\in (0,1/2)$ with non-sticky boundary condition and we give some remarks on CEV models in mathematical finance.", "revisions": [ { "version": "v1", "updated": "2019-02-15T07:51:53.000Z" } ], "analyses": { "subjects": [ "65C30", "60H35", "91G60" ], "keywords": [ "euler-maruyama scheme", "one-dimensional degenerate stochastic differential equation", "satisfies non-sticky boundary condition", "strong convergence" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable" } } }