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We study constrained 2-dimensional Navier-Stokes Equations driven by a multiplicative Gaussian noise in the Stratonovich form. In the deterministic case [4] we showed the existence of global solutions only on a two dimensional torus and…

偏微分方程分析 · 数学 2018-01-11 Zdzisław Brzeźniak , Gaurav Dhariwal

The objective of this note is to present the results from the two recent papers. We study the Navier--Stokes equation on the two--dimensional torus when forced by a finite dimensional white Gaussian noise. We give conditions under which…

概率论 · 数学 2007-05-23 Martin Hairer , Jonathan C. Mattingly , Etienne Pardoux

We review some basic results on existence and uniqueness of the invariant measure for the two-dimensional stochastic Navier-Stokes equations. A large part of the literature concerns the additive noise case; after revising these models, we…

概率论 · 数学 2025-01-06 Benedetta Ferrario , Margherita Zanella

We consider the two dimensional Navier-Stokes equations in vorticity form with a stochastic forcing term given by a gaussian noise, white in time and coloured in space. First, we prove existence and uniqueness of a weak (in the Walsh sense)…

概率论 · 数学 2017-02-07 Benedetta Ferrario , Margherita Zanella

Stochastic Navier-Stokes equations in 2D and 3D possibly unbounded domains driven by a multiplicative Gaussian noise are considered. The noise term depends on the unknown velocity and its spatial derivatives. The existence of a martingale…

概率论 · 数学 2017-01-03 Zdzisław Brzeźniak , Elżbieta Motyl

In this paper, we investigate both deterministic and stochastic 2D Navier Stokes equations with anisotropic viscosity. For the deterministic case, we prove the global well-posedness of the system with initial data in the anisotropic Sobolev…

偏微分方程分析 · 数学 2018-09-11 Siyu Liang , Ping Zhang , Rongchan Zhu

We prove the existence and some moment estimates for an invariant measure $\mu$ for the two-dimensional ($2$D) deterministic Euler equations on the unbounded domain $\mathbb R^2$ and with highly regular initial data. The result is achieved…

概率论 · 数学 2024-09-27 Zdzisław Brzeźniak , Matteo Ferrari

A stochastic Navier-Stokes equation with space-time Gaussian white noise is considered, having as infinitesimal invariant measure a Gaussian measure \mu_{\nu} whose covariance is given in terms of the enstrophy. Pathwise uniqueness for…

概率论 · 数学 2016-09-07 S. Albeverio , B. Ferrario

We study the qualitative properties of solutions to the 2D stochastic Navier-Stokes equations with forcing that is white in time and coloured in space. Our main result shows that the unique invariant measure of this system is equivalent to…

概率论 · 数学 2025-10-16 James Coe , Martin Hairer , Leonardo Tolomeo

We consider vanishing viscosity approximations to solutions of the stochastic incompressible Euler equations in two space dimensions with additive noise. We identify sufficient and necessary conditions under which martingale solutions of…

概率论 · 数学 2025-02-26 Tobias Rohner , Franziska Weber

We consider the Navier-Stokes equations in vorticity form in $\mathbb{R}^2$ with a white noise forcing term of multiplicative type, whose spatial covariance is not regular enough to apply the It\^o calculus in $L^q$ spaces, $1<q<\infty$. We…

概率论 · 数学 2018-03-06 Benedetta Ferrario , Margherita Zanella

Building upon the well-posedness results in \cite{snse1}, in this note we prove the existence of invariant measures for the stochastic Navier-Stokes equations with stable L\'evy noise. The crux of our proof relies on the assumption of…

概率论 · 数学 2018-12-14 Leanne Dong

We consider the Navier-Stokes equations in $\mathbb R^d$ ($d=2,3$) with a stochastic forcing term which is white noise in time and coloured in space; the spatial covariance of the noise is not too regular, so It\^o calculus cannot be…

概率论 · 数学 2015-10-14 Zdzislaw Brzezniak , Benedetta Ferrario

We consider the 2D stochastic Navier-Stokes equations driven by noise that has the regularity of space-time white noise but doesn't exactly coincide with it. We show that, provided that the intensity of the noise is sufficiently weak at…

概率论 · 数学 2025-10-22 Martin Hairer , Wenhao Zhao

We study a two-dimensional Navier--Stokes system with anisotropic viscosity, linear damping term, and an additive noise on the whole space $\mathbb{R}^2$. For this model we prove uniqueness of invariant measures when the damping coefficient…

概率论 · 数学 2026-01-29 Siyu Liang

We consider the Navier-Stokes equation on a two dimensional torus with a random force, white noise in time and analytic in space, for arbitrary Reynolds number $R$. We prove probabilistic estimates for the long time behaviour of the…

数学物理 · 物理学 2007-05-23 J. Bricmont , A. Kupiainen , R. Lefevere

We study 2D Navier-Stokes equations with a constraint on $L^2$ energy of the solution. We prove the existence and uniqueness of a global solution for the constrained Navier-Stokes equation on $\R^2$ and $\T$, by a fixed point argument. We…

偏微分方程分析 · 数学 2018-01-11 Zdzisław Brzeźniak , Gaurav Dhariwal , Mauro Mariani

We consider the Navier-Stokes equation on a two dimensional torus with a random force which is white noise in time, and excites only a finite number of modes. The number of excited modes depends on the viscosity $\nu$, and grows like…

数学物理 · 物理学 2007-05-23 J. Bricmont , A. Kupiainen , R. Lefevere

We prove that every Markov solution to the three dimensional Navier-Stokes equation with periodic boundary conditions driven by additive Gaussian noise is uniquely ergodic. The convergence to the (unique) invariant measure is exponentially…

数学物理 · 物理学 2009-11-13 Marco Romito

Building upon a recent work by two of the authours and J. Seidler on bw-Feller property for stochastic nonlinear beam and wave equations, we prove the existence of an invariant measure to stochastic 2-D Navier-Stokes (with multiplicative…

概率论 · 数学 2016-07-05 Zdzisław Brzeźniak , Elżbieta Motyl , Martin Ondrejat
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