报告人：李扬荣 (西南大学sunbet中国官网)

报告题目：Longtime robustness of pullback random attractors

报告摘要: In this talk, we focus on the semi-continuity of a pullback random attractor (PRA) at infinite time. We first establish the criteria for backward compactness of a PRA from a backward limit-set compact cocycle. We then prove that backward compactness of a PRA is a necessary and sufficient condition such that its time-fibers are upper semi-continuous at negative infinity, and obtain the minimal compact limit-set. We further obtain the maximal limit-set in the lower semi-continuity sense. The abstract results are illustrated in the contexts of stochastic magneto-hydrodynamics equations. Some further questions (or subjects) are proposed.  

报告人简介：李扬荣，西南大学sunbet中国官网教授，博导。博士（南京大学1996），博士后（北京应用物理与计算数学所）。现任重庆数学会，重庆工业与应用数学会副理事长，曾任中国数学会理事。主要研究随机偏微分方程的渐近性态及其上的随机动力系统，先后在J Dyn Diff Equ， J Diff Equ， Fract Cal Appl Anal，Phys D, J Appl Probab等期刊上发表论文100余篇 （其中SCI论文50余篇）。先后主持国家自然科学基金项目3项，教育部重点项目一项。曾获重庆市自然科学奖二等奖及优教成果二等奖各一项。

报告时间：2018年10月18日（星期四)上午9:00-10:00

报告地点：科技楼南楼702