Orateur
Prof.
Yvan VELENIK
(Université de Genève)
Description
In its modern incarnation (developed during the last two decades), Ornstein-Zernike's theory enables a non-perturbative analysis of non-critical ferromagnetic Ising models (and other models). I'll review some of its recent applications to the asymptotics of correlation functions (in any dimension) and to the fluctuation theory of interfaces (in the planar model).