Absence of blow-up in the 3D Navier-Stokes equations with transport noise

2026/07/16 by Antonio Agresti
#math.PR #math-ph #math.AP #math.MP

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Abstract

Establishing the global-in-time smoothness of solutions to the 3D Navier-Stokes equations (NSEs) with large initial data remains a long-standing open problem. In this paper, we prove that the 3D NSEs driven by a suitably chosen transport noise -- a physically motivated stochastic perturbation -- admit global-in-time smooth solutions with high probability. This regularizing effect holds uniformly for initial data in arbitrarily large balls of subcritical function spaces with positive smoothness.

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