Séminaires : Séminaire de Géométrie

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

Archive avant 2014

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

 

 


Orateur(s) Daniele SEMOLA - Scuola Normale superiore di Pisa,
Titre A quantitative Obata theorem via localization
Date16/12/2019
Horaire13:30 à 15:00
Diffusion
Résume

Obata's theorem characterizes the equality case in the spectral gap inequality for N dimensional Riemannian manifolds with Ricci curvature bounded below by N-1. In this talk I will present an approach to the quantitative study of the shape of eigenfunctions when equality is almost attained. The key tool is the so-called localization technique, which allows to treat possibly non smooth spaces.
The talk is based on a joint work with Fabio Cavalletti (SISSA) and Andrea Mondino (University of Oxford).

Sallesalle 2015
AdresseSophie Germain
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