On Gaussian multiplicative chaos

Abstract

We propose a new definition of the Gaussian multiplicative chaos (GMC) and an approach based on the relation of subcritical GMC to randomized shifts of a Gaussian measure. Using this relation we prove general uniqueness and convergence results for subcritical GMC that hold for Gaussian fields with arbitrary covariance kernels.

arXiv comment34 pages. Major revision of the original version. Numeration has changed significantly