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shupp_01

### Oberseminar Differentialgeometrie: Jian Wang, Universität Grenoble, Vortrag: Contractible 3-manifolds and positive scalar curvature

##### Montag, 08.04.2019 16:15 im Raum SR4

Abstract: It is not known whether a contractible 3-manifold admits a complete metric of positive scalar curvature. For example, the Whitehead manifold is a contractible 3-manifold but not homeomorphic to $R^{3}$. In this talk, I will present my proof that it does not have a complete metric with positive scalar curvature. I will further explain that a contractible genus one 3-manifold, a notion introduced by McMillan, does not admit a complete metric of positive scalar curvature.

Angelegt am Donnerstag, 21.02.2019 13:21 von shupp_01
Geändert am Donnerstag, 21.03.2019 14:53 von shupp_01
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