Rencontres mathématiques à Sète.

Géométrie, topologie et dynamique en basses dimensions.

23 mai 2022 - 27 mai 2022

Macroscopic scalar curvature and local collapsing.

Orateur

SABOURAU, Stéphane

Résumé

After introducing the notion of macroscopic scalar curvature, we will present the following result. Consider a Riemannian metric on a closed manifold admitting a hyperbolic metric. Suppose its macroscopic scalar curvature is greater or equal to the one of the hyperbolic metric. Then its volume is bounded away from zero.