100, rue des maths 38610 Gières / GPS : 45.193055, 5.772076 / Directeur : Louis Funar

Wioletta Ruszel

Scaling limits of odometers in sandpile models
Tuesday, 6 November, 2018 - 14:00 to 15:00
Résumé : 

The divisible sandpile model is a special case of the class of continuous sandpile models on a graph V where the initial configuration is random and the evolution deterministic. Under certain conditions on the initial configuration the model will stabilize to the all 1 configuration. The amount of mass (u(x))_{x\in V} that is emitted from x \in V during stabilization is called the odometer. Depending on the initial configuration and the way how mass is distributed one can show that the scaling limit of u can be  either a fractional Gaussian field w.r.t. some parameter s or an alpha-stable field.

The results presented in this talk are joint work with L.Chiarini (IMPA/TU Delft), A. Cipriani (U Bath/TU Delft), M. Jara (IMPA) and R. Hazra (ISI Kolkatta).

Institution de l'orateur : 
TU Delft
Thème de recherche : 
Probabilités
Salle : 
4
logo uga logo cnrs