A fundamental mean-square convergence theorem for SDEs with locally Lipschitz coefficients and its applications

发布者:系统管理员发布时间:2013-11-19浏览次数:1421

报告题目: A fundamental mean-square convergence theorem for SDEs with locally Lipschitz coefficients and its applications
报 告 人: Zhongqiang Zhang, PhD
  Division of Applied Mathematics, Brown University
报告时间: 11月29日 (星期五) 10:00-11:00
报告地点: 九龙湖数学系第一报告厅
相关介绍:
Abstract:  We prove a version of the fundamental mean-square convergence theorem for numerical methods of nonlinear stochastic differential equations (SDE). The coefficients of these nonlinear SDES are allowed to grow polynomially at infinity and satisfy a one-sided Lipschitz condition. The theorem is illustrated on a number of particular numerical methods, including a special balanced scheme and fully implicit methods. The proposed special balanced scheme is explicit and its mean-square order of convergence is half. Comparison among some recently-developed numerical methods for two nonlinear SDEs are presented.
Zhongqiang Zhang is now a PhD candidate at Division of Applied Mathematics, Brown University. He obtained a PhD degree in mathematics at Shanghai University in 2011. His research interests are numerical analysis of stochastic and deterministic differential equations. He has published 14 high-level research papers in SIAM Journal of numerical analysis, SIAM Journal of scientific computing, Journal of computational physics, etc.