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For the stochastic Navier-Stokes equations with a multiplicative white noise on ${\mathbb T}^{3}$, we prove that there exists a unique strong solution locally in time when the initial datum belongs to $L^p(\Omega; L^p)$ for $p>3$.

偏微分方程分析 · 数学 2021-10-15 Igor Kukavica , Fanhui Xu

The Navier--Stokes equation in the bidimensional torus is considered, with initial velocity and forcing term in suitable Besov spaces. Results of local existence and uniqueness are proven; under further restriction on the indexes defining…

偏微分方程分析 · 数学 2009-09-29 Z. Brzezniak , B. Ferrario

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

Numerical solutions of the laminar Prandtl boundary-layer and Navier-Stokes equations are considered for the case of the two-dimensional uniform flow past an impulsively-started circular cylinder. We show how Prandtl's solution develops a…

流体动力学 · 物理学 2014-04-21 Francesco Gargano , Marco Sammartino , Vincenzo Sciacca , Kevin W. Cassel

We show that any solution of the two-dimensional Navier-Stokes equation whose vorticity distribution is uniformly bounded in $L^1(R^2)$ for positive times is entirely determined by the trace of the vorticity at $t = 0$, which is a finite…

偏微分方程分析 · 数学 2007-05-23 Isabelle Gallagher , Thierry Gallay

We consider stochastic forced Navier--Stokes equations on $\mathbb{R}^{3}$ starting from zero initial condition. The noise is linear multiplicative and the equations are perturbed by an additional body force. Based on the ideas of…

概率论 · 数学 2024-09-11 Martina Hofmanová , Rongchan Zhu , Xiangchan Zhu

In this paper, we study the initial value problem of the Navier-Stokes equations in the half-space. Let a solenoidal initial velocity be given in the function space $ \dot{B}_{pq,0}^{\alpha-\frac{2}{2}}({\mathbb R}^n_+)$ for $\alpha +1 =…

偏微分方程分析 · 数学 2019-01-18 Tongkeun Chang , Bum Ja Jin

We consider the Navier-Stokes system describing the time evolution of a compressible barotropic fluid confined to a bounded spatial domain in the 3-D physical space, supplemented with the Navier's slip boundary conditions. It is shown that…

偏微分方程分析 · 数学 2014-04-08 Peter Bella , Eduard Feireisl , Bum Ja Jin , Antonin Novotny

In this paper we present a method to derive classical solutions of the Navier-Stokes equations for non-stationary initial value problems in domain $\mathbb{R}^n$ ($n=2,3$ or higher). Exact solutions in $\mathbb{R}^2$ and $\mathbb{R}^3$ in…

数学物理 · 物理学 2013-07-30 R. K. Michael Thambynayagam

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

We prove existence and uniqueness of martingale solutions to a (slightly) hyperviscous stochastic Navier-Stokes equation in 2d with initial conditions absolutely continuous with respect to the Gibbs measure associated to the energy, getting…

概率论 · 数学 2020-07-06 M. Gubinelli , M. Turra

We show the unique existence of solutions to stationary Navier-Stokes equations with small singular external forces belonging to a critical space. To the best of our knowledge, this is the largest critical space that is available up to now…

偏微分方程分析 · 数学 2013-04-01 Tuoc Van Phan , Nguyen Cong Phuc

This paper presents a unique continuation estimate for 2-D Stokes equations with the Naiver slip boundary condition in a bounded and simply connected domain. Consequently, an observability estimate for this equation from a subset of…

偏微分方程分析 · 数学 2012-05-29 Yuning Liu , Can Zhang

We construct finite-dimensional invariant manifolds in the phase space of the Navier-Stokes equation on R^2 and show that these manifolds control the long-time behavior of the solutions. This gives geometric insight into the existing…

偏微分方程分析 · 数学 2009-11-07 Th. Gallay , C. E. Wayne

We establish various results concerning the uniqueness of zero velocity solutions for the static barotropic Navier--Stokes system. Some of them can be seen as Liouville-type theorems for problems in unbounded physical space.

偏微分方程分析 · 数学 2024-12-24 Youseung Cho , Eduard Feireisl , Minsuk Yang

We introduce a concept of space-time holomorphic solutions of partial differential equations and construct a meromorphic solution of Navier-Stokes equations.

偏微分方程分析 · 数学 2013-09-03 Eugene Tsyganov

In the note, various scenarios of potential Type II blowups of suitable weak solutions to the Navier-Stokes equations are studied. It is shown, that under some assumptions, such type of blowups cannot happen. In this case, corresponding…

偏微分方程分析 · 数学 2026-01-06 Gregory Seregin

We consider inverse boundary value problems for the Navier-Stokes equations and the isotropic Lam\'e system in two dimensions. The uniqueness without any smallness assumptions on unknown coefficients, which is called global uniqueness, was…

偏微分方程分析 · 数学 2013-09-09 O. Yu. Imanuvilov , M. Yamamoto

We prove a local-in-time regularity criterion for the 3D Navier-Stokes equations. In particular, it follows from the criterion that the Hausdorff dimension of possible singular times of Leray-Hopf weak solutions $u\in L^r_t…

偏微分方程分析 · 数学 2019-01-30 Xiaoyutao Luo

A domain in $\mathbb{R}^3$ that touches the $x_3$ axis at one point is found with the following property. For any initial value in a $C^2$ class, the axially symmetric Navier Stokes equations with Navier slip boundary condition has a finite…

偏微分方程分析 · 数学 2022-01-06 Qi S. Zhang