报告题目：On degenerating of Einstein 4-manifolds and expansion of Ricci flat ALE metrics

报告人：陈优民（上海交通大学）

时间：2023年4月13日    10：00 -11：00    

地点：物质科研楼C1124

报告摘要：

In this talk, I will first recall some background about the Gromov-Hausdorff convergence theory, and then state the bubble tree convergence results of noncollapsing degenerating Einstein 4-manifolds obtained by the works of many authors. At last, I will introduce some results about the expansion of Ricci flat ALE metrics in harmonic coordinates at the infinity.