07-23吴文俊数学重点实验室微分几何系列报告【李宇】

时间:2019-07-19


Title:On the geometry of asymptotically flat manifolds
Speaker:李 宇   (Stony Brook University)
Time:2019年7月23日           上午  10:00-11:00
Room:东区管理科研楼  澳门新葡新京1308室

Abstract:In this talk, we show that any asymptotically flat manifold with controlled holonomy admits a refined torus fibration over an ALE manifold. In addition, we prove that any complete asymptotically flat Ricci-flat metric on $/mathbb R^4$ must be isometric to the Euclidean or the Taub-NUT metric, provided that the tangent cone at infinity is not $/mathbb R /times /mathbb R_+$. This is joint work with Xiuxiong Chen.


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