100, rue des maths 38610 Gières / GPS : 45.193055, 5.772076 / Directeur : Thierry Gallay

Klaus Widmayer

Long time dynamics in the rotating Euler equations
星期一, 21 十月, 2019 - 13:30
Résumé : 

We investigate long time dynamics of solutions to the rotating Euler equations in three spatial dimensions. We develop a framework that is adapted to the symmetries and the dispersive properties of this problem and show how it can be used to understand the behavior of small data solutions, uniformly in the parameter of rotation.

The key idea is to use the available symmetries as much as possible, rather than to pursue a more brute force approach. While this streamlines the deduction of some energy type estimates, it also requires a fresh look at the (linear) dispersive estimates, deviating from the classical stationary phase intuition.

Institution de l'orateur : 
Thème de recherche : 
Physique mathématique
Salle : 
1, Tour Irma
logo uga logo cnrs