报 告 人：董昭报告题目：On Limiting Behavior of Stationary Measures for Stochastic Evolution Systems with Small Noise Intensity报告时间：2016年11月 4日（周五）14：30报告地点：静远楼1506报告厅主办单位：数学与统计学院、科技处报告摘要： Academy of Mathematics and Systems Science, Chinese Academy of Sciences The limiting behavior of stochastic evolution processes with small noise intensity $\epsilon$ is investigated in distribution-based approach. Let $\mu^{\epsilon}$ be stationary measure for stochastic process $X^{\epsilon}$ with small $\epsilon$ and $X^{0}$ be a semiflow on a Polish space.Assume that $\{\mu^{\epsilon}: 0<\epsilon\leq\epsilon_0\}$ is tight. Then all their limits in weak sense are $X^0-$invariant and their supports are contained in Birkhoff center of $X^0$.Applications are made to various stochastic evolution systems, including stochastic ordinary differential equations, stochastic partial differential equations, stochastic functional differential equations driven by Brownian motion or L\'{e}vy process.报告人简介： 董昭，中国科学院数学与系统科学研究院研究员，中国科学院大学岗位教授，北京航空航天大学数学科学院兼职教授。1990年北京师范大学数学系获硕士学位，1996年中国科学院应用数学研究所获博士学位。中国概率统计学会常务理事、应用概率统计编委。研究方向是：狄氏型与无穷维随机分析、 随机动力系统与随机偏微分方程、软件可靠性。在国内、国外发表论文40 余篇。主持2项国家自然基金项目，并参与多项科研项目，如973项目、基金委的创新研究群体等。
