中科院数学与系统科学研究院

数学研究所

学术报告会

报告人：Dr. Chen Gao   (Stony Brook University)

题  目：Classification of gravitational instantons

时  间：2017.06.02（星期五），15:00-16:00，N818 

Abstract：In this talk, a gravitational instanton means a non-compact complete hyperk?hler 4-manifold with faster than quadratic curvature decay. I will show that the examples constructed in the first lecture are the only examples. As corollary, I will discuss about the Torelli-type theorems. This is a joint work with Xiuxiong Chen.