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Non-unique ergodicity for stochastic 3D Navier--Stokes and Euler equations

  • Martina Hofmanova (Universität Bielefeld)
E1 05 (Leibniz-Saal)

Abstract

We establish existence of infinitely many stationary solutions as well as ergodic stationary solutions to the three dimensional Navier--Stokes and Euler equations in the deterministic as well as stochastic setting, driven by an additive noise. The solutions belong to the regularity class $C(\mathbb{R};H^{\vartheta})\cap C^{\vartheta}(\mathbb{R};L^{2})$ for some $\vartheta>0$ and satisfy the equations in an analytically weak sense. The result is based on a stochastic variant of the convex integration method which provides uniform moment bounds locally in the aforementioned function spaces.

Katja Heid

MPI for Mathematics in the Sciences Contact via Mail

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