Homogenization of a stochastically forced Hamilton-Jacobi equation
Abstract
We study the homogenization of a Hamilton-Jacobi equation forced by rapidly oscillating noise that is colored in space and white in time. It is shown that the homogenized equation is deterministic, and, in general, the noise has an enhancement effect, for which we provide a quantitative estimate. As an application, we perform a noise sensitivity analysis for Hamilton-Jacobi equations forced by a noise term with small amplitude, and identify the scaling at which the macroscopic enhancement effect is felt. The results depend on new, probabilistic estimates for the large scale H\"older regularity of the solutions, which are of independent interest.
Keywords
Cite
@article{arxiv.1911.08377,
title = {Homogenization of a stochastically forced Hamilton-Jacobi equation},
author = {Benjamin Seeger},
journal= {arXiv preprint arXiv:1911.08377},
year = {2020}
}
Comments
35 pages, various typos corrected, changes in wording, expanded discussions, minor corrections to proofs per reviewer suggestions