First eigenvalue estimates in strictly pseudoconvex CR manifolds-武汉大学数学与统计学院

报告题目:

First eigenvalue estimates in strictly pseudoconvex CR manifolds

报告人:

吴进通教授（台湾屏东师范大学）

报告时间:

报告地点:

理学院东北楼四楼报告厅（404）

报告摘要:

In this talk, we will talk about how to get a sharp lower bound estimate for the first nonzero eigenvalue of the sub-Laplacian, Kohn Laplacian, and Folland- Stein operator, on a closed strictly pseudoconvex CR (2n+1)-manifold. We also discuss the case when a sharp lower bound estimate of the sub-Laplacian or Kohn Laplacian is achieved. It can be showed that such a manifold is the standard CR (2n+1)-sphere.