北航微分几何讨论班（第7讲）
题目：4-dimensional steady gradient Ricci solitons(GRS)
报告人：邓宇星（北京理工大学）
报告时间：2020年11月5日10:30-11:30
地点：沙河校区主楼E座E-404
摘要：In this talk, we will talk about some recent progress on the classification of 4-dimensional k-noncollapsed steady gradient Ricci solitons. In particular, we will classify the asymptotic geometry of 4D k-noncollapsed steady GRS whose Ricci curvature is nonnegative outside a compact set. As an application, we will show that k-noncollapsed steady Kahler-Ricci solitons whose Ricci curvature is nonnegative outside a compact set must be Ricci-flat. This is a joint work with Prof. Bennnett Chow and Zilu Ma. This paper is available at arXiv:2009.11456.
报告人简介：邓宇星，北京理工大学副研究员。本科毕业于北京师范大学，在北京大学数学系直博，导师为朱小华教授。2020年获得国家优秀青年基金。从事Ricci flow研究，特别是Ricci soliton分类的研究。研究成果发表于Math Ann, TAMS, IMRN, Math Z.等杂志，并有论文在JEMS杂志在线发表。
邀请人：张世金
