The Navier-Stokes equations with transport noise in critical $H^{1/2}$ space

Fuente: arXiv
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Autori principali: Aydın, Mustafa Sencer, Xu, Fanhui
Natura: Preprint
Pubblicazione: 2025
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author Aydın, Mustafa Sencer
Xu, Fanhui
author_facet Aydın, Mustafa Sencer
Xu, Fanhui
contents We study the Navier-Stokes equations with transport noise in critical function spaces. Assuming the initial data belongs to $H^{1/2}$ almost surely, we establish the existence and uniqueness of a local-in-time probabilistically strong solution. Moreover, we show that the probability of global existence can be made arbitrarily close to $1$ by choosing the initial data norm sufficiently small, and that the solution norm remains small for all time. Our analysis is independent of the compactness of the spatial domain, and consequently, the results apply both to the three-dimensional torus and to the whole space.
format Preprint
id arxiv_https___arxiv_org_abs_2511_04138
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Navier-Stokes equations with transport noise in critical $H^{1/2}$ space
Aydın, Mustafa Sencer
Xu, Fanhui
Probability
Analysis of PDEs
We study the Navier-Stokes equations with transport noise in critical function spaces. Assuming the initial data belongs to $H^{1/2}$ almost surely, we establish the existence and uniqueness of a local-in-time probabilistically strong solution. Moreover, we show that the probability of global existence can be made arbitrarily close to $1$ by choosing the initial data norm sufficiently small, and that the solution norm remains small for all time. Our analysis is independent of the compactness of the spatial domain, and consequently, the results apply both to the three-dimensional torus and to the whole space.
title The Navier-Stokes equations with transport noise in critical $H^{1/2}$ space
topic Probability
Analysis of PDEs
url https://arxiv.org/abs/2511.04138