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We study statistical solutions of the incompressible Navier-Stokes equation and their vanishing viscosity limit. We show that a formulation using correlation measures, which are probability measures accounting for spatial correlations, and…

偏微分方程分析 · 数学 2022-03-24 Ulrik Skre Fjordholm , Siddhartha Mishra , Franziska Weber

A family of solutions of the incompressible Navier-Stokes equations is said to present anomalous dissipation if energy dissipation due to viscosity does not vanish in the limit of small viscosity. In this article we present a proof of…

偏微分方程分析 · 数学 2025-04-28 Tarek Elgindi , Milton Lopes Filho , Helena Nussenzveig Lopes

We study the stochastic dissipative quasi-geostrophic equation with space-time white noise on the two-dimensional torus. This equation is highly singular and basically ill-posed in its original form. The main objective of the present paper…

概率论 · 数学 2020-07-30 Yuzuru Inahama , Yoshihiro Sawano

We establish global-in-time existence and non-uniqueness of probabilistically strong solutions to the three dimensional Navier--Stokes system driven by space-time white noise. In this setting, solutions are expected to have space regularity…

偏微分方程分析 · 数学 2021-12-30 Martina Hofmanová , Rongchan Zhu , Xiangchan Zhu

We consider the incompressible Euler and Navier-Stokes equations on the three dimensional torus, in velocity form, perturbed by a transport or transport-stretching Stratonovich noise. Closed control of the noise contributions in energy…

偏微分方程分析 · 数学 2025-07-02 Daniel Goodair

We show that the system of point vortices, perturbed by a certain transport type noise, converges weakly to the vorticity form of 2D Navier--Stokes equations driven by the space-time white noise.

概率论 · 数学 2020-10-01 Franco Flandoli , Dejun Luo

We prove three results on the existence of densities for the laws of finite dimensional functionals of the solutions of the stochastic Navier-Stokes equations in dimension 3. In particular, under very mild assumptions on the noise, we prove…

概率论 · 数学 2012-03-05 Arnaud Debussche , Marco Romito

In this paper, we study the global well-posedness of the 2D compressible Navier-Stokes equations with large initial data and vacuum. It is proved that if the shear viscosity $\mu$ is a positive constant and the bulk viscosity $\l$ is the…

偏微分方程分析 · 数学 2012-02-08 Quansen Jiu , Yi Wang , Zhouping Xin

The Navier-Stokes-Voigt model of viscoelastic incompressible fluid has been recently proposed as a regularization of the three-dimensional Navier-Stokes equations for the purpose of direct numerical simulations. Besides the kinematic…

数学物理 · 物理学 2009-10-09 Fabio Ramos , Edriss S. Titi

In this article, we study the stochastic wave equation in all dimensions $d\leq 3$, driven by a Gaussian noise $\dot{W}$ which does not depend on time. We assume that either the noise is white, or the covariance function of the noise…

概率论 · 数学 2021-07-12 Raluca M. Balan , Le Chen , Xia Chen

We are concerned with the isentropic compressible Navier-Stokes system in the two-dimensional torus, with rough data and vacuum : the initial velocity is in the Sobolev space H^1 and the initial density is only bounded and nonnegative.…

偏微分方程分析 · 数学 2023-11-03 Raphaël Danchin , Shan Wang

We study Freidlin-Wentzell's large deviation principle for one dimensional nonlinear stochastic heat equation driven by a Gaussian noise: $$\frac{\partial u^\varepsilon(t,x)}{\partial t} = \frac{\partial^2 u^\varepsilon(t,x)}{\partial…

概率论 · 数学 2022-08-26 Ruinan Li , Ran Wang , Beibei Zhang

This paper is devoted to the regularity of Navier-Stokes (NS) equations with additive white noise on two-dimensional torus $\mathbb T^2$. Under the conditions that the external force $f(x)$ belongs to the phase space $ H$ and the noise…

偏微分方程分析 · 数学 2025-08-27 Hongyong Cui , Hui Liu , Jie Xin

We have found an infinite dimensional manifold of exact solutions of the Navier-Stokes loop equation for the Wilson loop in decaying Turbulence in arbitrary dimension $d >2$. This solution family is equivalent to a fractal curve in complex…

流体动力学 · 物理学 2023-10-26 Alexander Migdal

We investigate the Large Deviation behavior in small time of continuous Gaussian processes. We introduce a general procedure allowing to derive Large Deviation Principles in small time starting from the well understood context of Large…

概率论 · 数学 2023-01-11 Paolo Baldi , Barbara Pacchiarotti

In this paper, we establish a large deviation principle for stochastic models of two-dimensional second grade fluids driven by L\'evy noise. The weak convergence method introduced by Budhiraja, Dupuis and Maroulas in [5] plays a key role.

概率论 · 数学 2017-06-28 Jianliang Zhai , Tusheng Zhang , Wuting Zheng

We prove the validity of a small noise large deviation principle for the family of invariant measures $\{\mu_\epsilon\}_{\epsilon>0} $ associated to the one dimensional stochastic Allen-Cahn equation with inhomogeneous Dirichlet boundary…

概率论 · 数学 2026-04-03 Rui Bai , Chunrong Feng , Huaizhong Zhao

We prove the existence of small amplitude, time-quasi-periodic solutions (invariant tori) for the incompressible Navier-Stokes equation on the $d$-dimensional torus $\T^d$, with a small, quasi-periodic in time external force. We also show…

偏微分方程分析 · 数学 2020-05-28 Riccardo Montalto

This paper is concerned with the Cauchy problem for the modified two-dimensional (2D) nonhomogeneous incompressible Navier-Stokes equations with density-dependent viscosity. By fully using the structure of the system, we can obtain the key…

偏微分方程分析 · 数学 2026-02-02 Bing Yuan , Rong Zhang , Peng Zhou

We consider the damped nonlinear wave (NLW) equation driven by a spatially regular white noise. Assuming that the noise is non-degenerate in all Fourier modes, we establish a large deviations principle (LDP) for the occupation measures of…

偏微分方程分析 · 数学 2015-05-15 Davit Martirosyan , Vahagn Nersesyan