Conférence

# Burkhard Wilking - Manifolds with almost nonnegative curvature operator

Réalisation : 29 juin 2016 Mise en ligne : 29 juin 2016
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Descriptif

We show that n-manifolds with a lower volume bound v and upper diameter bound D whose curvature operator is bounded below by $-\varepsilon(n,v,D)$ also admit metrics with nonnegative curvature operator. The proof relies on heat kernel estimates for the Ricci flow and shows that various smoothing properties of the Ricci flow remain valid if an upper curvature bound is replaced by a lower volume bound. nonnegative curvature operator.

Intervenants
Thèmes
Discipline :
Notice
Langue :
Anglais
Crédits
Fanny Bastien (Réalisation)
Conditions d'utilisation
CC BY-NC-ND 4.0
Citer cette ressource:
I_Fourier. (2016, 29 juin). Burkhard Wilking - Manifolds with almost nonnegative curvature operator. [Vidéo]. Canal-U. https://www.canal-u.tv/60887. (Consultée le 28 mai 2022)
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