Fluctuations of Parabolic Equations with Large Random Potentials

preprint2014arXivOpen access

Abstract

In this paper, we present a fluctuation analysis of a type of parabolic equations with large, highly oscillatory, random potentials around the homogenization limit. With a Feynman-Kac representation, the Kipnis-Varadhan's method, and a quantitative martingale central limit theorem, we derive the asymptotic distribution of the rescaled error between heterogeneous and homogenized solutions under different assumptions in dimension d≥3d\geq 3. The results depend highly on whether a stationary corrector exits.

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