报告题目:On principal eigenvalues for parabolic operators
主讲人:刘爽 研究员
时 间:2022年6月15日(周三)下午19:00
地 点:腾讯会议(658-429-120)
主办单位:理学院
主讲人简介:
刘爽,北京理工大学数学与统计学院副研究员,2021年12月毕业于中国人民大学,师从楼元教授。主要研究方向为偏微分方程和生物数学,关注椭圆和抛物算子的特征值理论和多物种的传播性质。在Trans. Amer. Math. Soc., J. Funct. Anal., SIAM J. Appl. Math., SIAM J. Math. Anal.等期刊发表论文十余篇。
摘要:
In this talk, we shall discuss some qualitative properties of the principal eigenvalue for a linear time-periodic parabolic operator with zero Neumann boundary conditions. Monotonocity of the principal eigenvalue and its asymptotic behaviors, as diffusion rate,the advection rate and time period approach zero or infinity, are established. This leads to a classification of the topological structures of level sets for the principal eigenvalue, as a function of diffusion rate and frequency. This is a joint work with Professor Yuan Lou.