勷勤数学•专家报告
题 目:On Principal Eigenvalues for Elliptic Operators with Shear Flow
报 告 人:刘爽 副研究员 (邀请人:丁维维)
西安电子科技大学
时 间:3月30日 17:30-18:30
地 点:数科院西楼111报告厅
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。
摘 要:
In this talk, we will discuss the recent progress on principal eigenvalues of second order elliptic operators with shear flow. Some monotonicity and asymptotic behaviors of principal eigenvalues, with respect to diffusion rate and flow amplitude, are established. These local asymptotic analysis can help us 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. This is a joint work with Professor Yuan Lou.
欢迎老师、同学们参加、交流!