报告人: 任维清(Weiqing Ren) 教授 National University of Singapore
邀请人: 丁时进
时 间: 2018-09-05(周三)下午3:00--5:00
地 点: 学术报告厅111
题 目: Modeling Rare Events in Complex Systems
摘 要: The dynamics of complex systems is often driven by rare but important events. Well-known examples include nucleation events during phase transition, conformational changes of bio-molecules, dislocation dynamics in crystalline solides, etc. The long time scale associated with these rare events is a consequence of the disparity between the effective thermal energy and typical energy barrier of the systems. The dynamics proceeds by long waiting periods around metastable states followed by sudden jumps from one state to another. In this series of lectures, I will discuss theories and numerical methods for modelling such rare events. Topics include: Stochastic differential equations, transition state theory, milestoning, the transition path theory, the string method, and applications.
报告人简介:任维清,新加坡国立大学数学系教授。2002年毕业于纽约大学Courant数学科学研究所并获博士学位。先后在普林斯顿高等研究院和普林斯顿大学从事博士后研究工作,2005年至2011年在纽约大学Courant数学科学研究所担任助理教授,2011年至今在新加坡国立大学数学系先后担任副教授及教授。任教授的研究领域主要为稀有事件模型,多尺度问题的理论和数值方法,以及多相流体动力学。曾获Alfred P. Sloan Research Fellowship (2007) 和冯康科学计算奖(2015)。