Séminaire de géométrie

Le séminaire de géométrie a lieu en général le vendredi matin, à 11h en salle de séminaire.
Pour toute question relative à l'organisation, merci de contacter Gilles Carron.

Nom de l'orateur
Leo Tzou
Etablissement de l'orateur
University of Amsterdam
Lieu de l'exposé
Salle de séminaire
Date et heure de l'exposé

The Levy flight hypothesis postulates that Levy flight search patterns are more efficient than searches based on Brownian motions. However, in this talk I will present some recent results suggesting that this may not always be the case. 

These insights are based on obtaining detailed properties of the infinitesimal generators for geodesic Levy processes, which are not always fractional Laplacians as in the Euclidean case. Instead, depending on the behaviour of geodesic flows, these infinitesimal generators can take on various forms, including in some cases displaying propagation type behaviours like fundamental solutions of wave equation. We will discuss the ramification of these unexpected properties on the underlying stochastic process.