活动地点：

活动类型：学术报告

主讲人：李策策博士

活动时间：2023-08-21 09:00:00--2023-08-21 10:00:00

活动内容：

李策策博士专题学术报告

报告人：李策策（河南科技大学）

时间：2023年8月21日（周一）上午9点

腾讯会议：782139172

题目：Tsinghua principle and its applications in affine differential geometry

摘要：In this talk, first I will show a view of the Tsinghua principle for the symmetric Codazzi tensor of 

(1,2)-form on a conformally flat Riemannian manifold, and briefly review its recent application for 

centroaffine hypersurfaces. Second, by applying another view of the Tsinghua principle, I will mainly 

show the classification results of locally strongly convex affine hypersurfaces with semi-parallel cubic

form, if they admit at most one affine principal curvature of multiplicity one. The so-called Tsinghua 

principle, which was first discovered by H. Li, L. Vrancken and X. Wang in 2013 at Tsinghua University, 

has been employed by many geometers to study the canonical submanifolds in various extrinsic spaces. 

The main work is joint with Dr. Cheng Xing and Dr. Huiyang Xu.