Equivalence of physical and SRB measures in random dynamical systems
Dynamical Systems
2019-05-01 v1
Abstract
We give a geometric proof, offering a new and quite different perspective on an earlier result of Ledrappier and Young on random transformations. We show that under mild conditions, sample measures of random diffeomorphisms are SRB measures. As sample measures are the limits of forward images of stationary measures, they can be thought of as the analog of physical measures for deterministic systems. Our results thus show the equivalence of physical and SRB measures in the random setting, a hoped-for scenario that is not always true for deterministic maps.
Keywords
Cite
@article{arxiv.1812.07144,
title = {Equivalence of physical and SRB measures in random dynamical systems},
author = {Alex Blumenthal and Lai-Sang Young},
journal= {arXiv preprint arXiv:1812.07144},
year = {2019}
}
Comments
34 pages, 1 figure