Global smooth solutions by transport noise of 3D Navier-Stokes equations with small hyperviscosity

Fuente: arXiv
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Main Author: Agresti, Antonio
Format: Preprint
Published: 2024
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author Agresti, Antonio
author_facet Agresti, Antonio
contents The existence of global smooth solutions to the Navier-Stokes equations (NSEs) with hyperviscosity $(-Δ)^γ$ is open unless $γ$ is close to the J.-L. Lions exponent $ \frac{5}{4}$ at which the energy balance is strong enough to prevent singularity formation. If $1<γ\ll \frac{5}{4}$, then the global well-posedness of the hyperviscous NSEs is widely open as for the usual NSEs. In this paper, for all $γ>1$, we show the existence of a transport noise for which global smooth solutions to the stochastic hyperviscous NSEs on the three-dimensional torus exist with high probability. In particular, a suitable transport noise considerably improves the known well-posedness results in the deterministic setting.
format Preprint
id arxiv_https___arxiv_org_abs_2406_09267
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Global smooth solutions by transport noise of 3D Navier-Stokes equations with small hyperviscosity
Agresti, Antonio
Analysis of PDEs
Probability
Primary: 60H50, Secondary: 60H15, 76M35, 35Q35
The existence of global smooth solutions to the Navier-Stokes equations (NSEs) with hyperviscosity $(-Δ)^γ$ is open unless $γ$ is close to the J.-L. Lions exponent $ \frac{5}{4}$ at which the energy balance is strong enough to prevent singularity formation. If $1<γ\ll \frac{5}{4}$, then the global well-posedness of the hyperviscous NSEs is widely open as for the usual NSEs. In this paper, for all $γ>1$, we show the existence of a transport noise for which global smooth solutions to the stochastic hyperviscous NSEs on the three-dimensional torus exist with high probability. In particular, a suitable transport noise considerably improves the known well-posedness results in the deterministic setting.
title Global smooth solutions by transport noise of 3D Navier-Stokes equations with small hyperviscosity
topic Analysis of PDEs
Probability
Primary: 60H50, Secondary: 60H15, 76M35, 35Q35
url https://arxiv.org/abs/2406.09267