Geometric Analysis and Mathematical General Relativity Seminar——De Rham Decomposition for Riemannian manifolds with boundary, Cartan-Ambrose-Hicks and Fundamental theorem for submanifolds
报告人：Prof. Chengjie Yu （ Shantou University )
地点：腾讯会议 (ID：663 375 984) （链接：https://meeting.tencent.com/s/5TRZ6Wdf79515）
Abstract：We will first talk about de Rham decomposition for Riemannian manifolds without boundary. In the course of proving the decomposition, we need a new form of Cartan-Ambrose-Hicks theorem. Finally, inspired by the new form of Cartan-Amrose-Hicks theorem, we have a generalization of the fundamental theorem for submanifolds which works for any ambient spaces.