SDES WITH OBLIQUE REFLECTION ON NONSMOOTH DOMAINS

• 成果类型: Article
• 署名作者: DUPUIS, P; ISHII, H
• 署名单位: University of Massachusetts System; University of Massachusetts Amherst; Chuo University
• 刊物名称: ANNALS OF PROBABILITY
• ISSN/ISSBN: 0091-1798
• DOI: 10.1214/aop/1176989415
• 发表日期: 1993
• 页码: 554-580
• 关键词: differential-equations

摘要

In this paper we consider stochastic differential equations with reflecting boundary conditions for domains that might have corners and for which the allowed directions of reflection at a point on the boundary of the domain are possibly oblique. The main results are strong existence and uniqueness for solutions of such equations. A key ingredient is a family of relatively regular functions appropriate to the given domain and directions of reflection. Two cases are treated in the paper. In the first case the direction of reflection is single valued and varies smoothly, and the main new feature is that the boundary of the domain may be nonsmooth. In the second case the domain is taken to be the intersection of a finite number of domains with relatively smooth boundary, and at the resulting corner points more than one oblique direction is allowed.