Séminaires : Séminaire de Géométrie

Equipe(s) : gd,
Responsables :L. Hauswirth, R. Souam, E. Toubiana
Email des responsables :
Salle : salle 2015
Adresse :Sophie Germain
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Archive avant 2014

Hébergé par le projet Géométrie et Dynamique de l’IMJ-PRG

 

 


Orateur(s) Jian WANG - Institut Fourier, Grenoble,
Titre Contractible 3-manifolds and Positive scalar curvature
Date03/06/2019
Horaire13:30 à 15:00
Diffusion
RésumeIt 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.
Sallesalle 2015
AdresseSophie Germain
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