Séminaires : Séminaire d'Analyse Fonctionnelle

Equipe(s) : af,
Responsables :E. Abakoumov - A.Eskenazis - D. Cordero-Erausquin - M. Fathi - O. Guédon - B. Maurey
Email des responsables :
Salle : salle 13 - couloir 15-16 - 4ème étage
Adresse :Campus Pierre et Marie Curie
Le Jeudi à 10h30 -  IMJ-PRG - 4 place Jussieu - 75005 PARIS

Orateur(s) Manor Mendel - Open University of Israel,
Titre Ramsey-type theorems for metric spaces
Horaire10:30 à 12:00

First introduced by Bourgain, Figiel and Milman in the context of the Ribe Program, Ramsey-type theorems for metric spaces state that compact metric spaces  contain ``large" subsets which are approximately ultrametric. They have since found applications in Metric Geometry, Online Algorithms, Approximation Algorithms, Data Structures, Probability, Descriptive Set Theory, and Geometric Measure Theory. We will discuss  the ``ultrametric skeleton" theorem behind most Ramsey-type theorems for metric spaces, and a recent regular form of the theorem. Time permitting, we will prove of a special case of the theorem for doubling spaces.

Sallesalle 13 - couloir 15-16 - 4ème étage
AdresseCampus Pierre et Marie Curie