Second order perturbation theory of two-scale systems in fluid dynamics

A Debussche, U Pappalettera - Journal of the European Mathematical …, 2024 - ems.press
In the present paper we study fast-slow systems of coupled equations from fluid dynamics,
where the fast component is perturbed by additive noise. We prove that, under a suitable …

Global existence and non-uniqueness of 3D Euler equations perturbed by transport noise

M Hofmanová, T Lange, U Pappalettera - Probability Theory and Related …, 2024 - Springer
We construct Hölder continuous, global-in-time probabilistically strong solutions to 3D Euler
equations perturbed by Stratonovich transport noise. Kinetic energy of the solutions can be …

Weak well-posedness by transport noise for a class of 2D fluid dynamics equations

L Galeati, D Luo - arXiv preprint arXiv:2305.08761, 2023 - arxiv.org
A fundamental open problem in fluid dynamics is whether solutions to $2 $ D Euler
equations with $(L^ 1_x\cap L^ p_x) $-valued vorticity are unique, for some $ p\in [1,\infty) …

Global existence and non-uniqueness for the Cauchy problem associated to 3D Navier–Stokes equations perturbed by transport noise

U Pappalettera - Stochastics and Partial Differential Equations: Analysis …, 2024 - Springer
We show global existence and non-uniqueness of probabilistically strong, analytically weak
solutions of the three-dimensional Navier–Stokes equations perturbed by Stratonovich …

[HTML][HTML] Reaction-diffusion equations with transport noise and critical superlinear diffusion: local well-posedness and positivity

A Agresti, M Veraar - Journal of Differential Equations, 2023 - Elsevier
In this paper we consider a class of stochastic reaction-diffusion equations. We provide local
well-posedness, regularity, blow-up criteria and positivity of solutions. The key novelties of …

Regularization by noise of an averaged version of the Navier–Stokes equations

T Lange - Journal of Dynamics and Differential Equations, 2023 - Springer
In Tao 2016, the author constructs an averaged version of the deterministic three-
dimensional Navier–Stokes equations (3D NSE) which experiences blow-up in finite time. In …

LDP and CLT for SPDEs with transport noise

L Galeati, D Luo - Stochastics and Partial Differential Equations: Analysis …, 2024 - Springer
In this work we consider solutions to stochastic partial differential equations with transport
noise, which are known to converge, in a suitable scaling limit, to solution of the …

Reduced dissipation effect in stochastic transport by Gaussian noise with regularity greater than 1/2

F Flandoli, F Russo - arXiv preprint arXiv:2305.19293, 2023 - arxiv.org
Diffusion with stochastic transport is investigated here when the random driving process is a
very general Gaussian process including Fractional Brownian motion. The purpose is the …

Stochastic inviscid Leray-α model with transport noise: convergence rates and CLT

D Luo, B Tang - Nonlinear Analysis, 2023 - Elsevier
We consider the stochastic inviscid Leray-α model on the torus driven by transport noise.
Under a suitable scaling of the noise, we prove that the weak solutions converge, in some …

Reaction-diffusion equations with transport noise and critical superlinear diffusion: Global well-posedness of weakly dissipative systems

A Agresti, M Veraar - SIAM Journal on Mathematical Analysis, 2024 - SIAM
In this paper, we investigate the global well-posedness of reaction-diffusion systems with
transport noise on the-dimensional torus. We show new global well-posedness results for a …