报告人：刘爽 副研究员（北京理工大学）

时间：2025年12月3日星期三下午2:30--4:00

报告方式：腾讯会议，会议号：380-499-788，密码：251203

题目：Some recent progress on principal eigenvalues for second order non-self-adjiont elliptic operators

摘要：The study on the qualitative properties of principal eigenvalue for second order elliptic operators has a long history. In recent years there are some interest in investigating the monotonicity and asymptotic behaviors of such principal eigenvalue with small diffusion or large advection rates. In this talk we will discuss some recent works along this line, and try to find some global information on the principal eigenvalue, i.e. the classification of topological structures of the level sets as a function of multiple parameters. This enables us to better understand qualitative properties of the principal eigenvalues. 

报告人简介：刘爽，北京理工大学副研究员，博士毕业于中国人民大学，研究领域为偏微分方程与生物数学，关注椭圆和抛物算子的特征值理论和多物种的传播问题，在JMPA,TAMS,JFA,SIMA等期刊发表论文多篇。曾获北京市优秀博士学位论文奖，入选博新计划，主持国家自然科学基金青年基金项目。