Trivial resonances for a semilinear Klein-Gordon system

par Arthur Touati (IMB - Université de Bordeaux)

lundi 9 févr. 2026, 14:00 → 15:00 Europe/Paris

Amphi Schwartz

I will present recent work on the derivation of an effective dynamics for the correlations associated to a semilinear Klein-Gordon system with random initial data. Due to the lack of invariances of this system, the effective dynamics is led by the trivial resonances and is not of kinetic type. I will motivate and present the model and the main result, and give some elements of the proof. This is a joint work with Anne-Sophie de Suzzoni (Evry) and Annalaura Stingo (Ecole polytechnique).