| Orateur(s) | Jian WANG - Institut Fourier, Grenoble,
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| Titre | Contractible 3-manifolds and Positive scalar curvature |
| Date | 03/06/2019 |
| Horaire | 13:30 à 15:00 |
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| Diffusion | |
| Résume | 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 R3. 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.
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| Salle | https://bbb-front.math.univ-paris-diderot.fr/recherche/pau-6ha-of4-mea |
| Adresse | Sophie Germain |
