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相关论文: On posterior consistency of data assimilation with…

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We consider the asymptotic behavior of posterior distributions and Bayes estimators based on observations which are required to be neither independent nor identically distributed. We give general results on the rate of convergence of the…

统计理论 · 数学 2009-09-29 Subhashis Ghosal , Aad van der Vaart

We construct large velocity vector solutions to the three dimensional inhomogeneous Navier-Stokes system. The result is proved via the stability of two dimensional solutions with constant density, under the assumption that initial density…

偏微分方程分析 · 数学 2019-01-29 Piotr B. Mucha , Liutang Xue , Xiaoxin Zheng

In this article we study the local stabilization of the non-homogeneous Navier- Stokes equations in a 2d channel around Poiseuille flow. We design a feedback control of the velocity which acts on the inflow boundary of the domain such that…

偏微分方程分析 · 数学 2018-07-12 Sourav Mitra

In this paper, we deal with the convergence of an iterative scheme for the 2-D stochastic Navier-Stokes Equations on the torus suggested by the Lie-Trotter product formulas for stochastic differential equations of parabolic type. The…

概率论 · 数学 2022-10-13 Hakima Bessaih , Zdzislaw Brzezniak , Annie Millet

In this article, we investigate an interacting particle system featuring random intensities, individual noise, and environmental noise, commonly referred to as stochastic point vortex model. The model serves as an approximation for the…

概率论 · 数学 2024-02-06 Yufei Shao , Xianliang Zhao

This paper considers a Bayesian approach for inclusion detection in nonlinear inverse problems using two known and popular push-forward prior distributions: the star-shaped and level set prior distributions. We analyze the convergence of…

In this paper, we are interested in the long-time behaviour of stochastic systems of n interacting vortices: the position in R2 of each vortex evolves according to a Brownian motion and a drift summing the influences of the other vortices…

概率论 · 数学 2015-01-27 Joaquin Fontbona , Benjamin Jourdain

In this paper, we are concerned with the global wellposedness of 2-D density-dependent incompressible Navier-Stokes equations with variable viscosity, in a critical functional frame- work which is invariant by the scaling of the equations…

偏微分方程分析 · 数学 2012-12-18 Jingchi Huang , Marius Paicu , Ping Zhang

A constructive numerical approximation of the two-dimensional unsteady stochastic Navier-Stokes equations of an incompressible fluid is proposed via a pseudo-compressibility technique involving a parameter $\epsilon$. Space and time are…

数值分析 · 数学 2022-05-02 Jad Doghman

A posteriori estimates for mixed finite element discretizations of the Navier-Stokes equations are derived. We show that the task of estimating the error in the evolutionary Navier-Stokes equations can be reduced to the estimation of the…

数值分析 · 数学 2016-12-23 Javier de Frutos , Bosco García-Archilla , Julia Novo

Motivated by \cite{CG10,CZ6}, we prove the global existence of solutions to the two-dimensional isentropic compressible Navier-Stokes equations with smooth initial data which are slowly varying in one direction and with initial density…

偏微分方程分析 · 数学 2021-06-04 Yong Lu , Ping Zhang

We consider an inverse initial-data problem for the compressible anisotropic Navier--Stokes equations, in which the goal is to reconstruct the initial velocity field from noisy lateral boundary observations. In the formulation studied here,…

数值分析 · 数学 2026-03-06 Cong B. Van , Thuy T. Le , Loc H. Nguyen

We study a finite-element based space-time discretisation for the 2D stochastic Navier-Stokes equations in a bounded domain supplemented with no-slip boundary conditions. We prove optimal convergence rates in the energy norm with respect to…

数值分析 · 数学 2022-10-06 Dominic Breit , Andreas Prohl

We establish the global existence of forward self-similar solutions to the two-dimensional incompressible Navier-Stokes equations for any divergence-free initial velocity that is homogeneous of degree $-1$ and locally H\"older continuous.…

偏微分方程分析 · 数学 2026-01-16 Changfeng Gui , Hao Liu , Chunjing Xie

This manuscript is devoted to the long-term regularity of the 2-d Navier-Stokes-Poisson system. We allow the initial density to be close to a constant and the potential part of the initial velocity to be small independently of the rescaled…

偏微分方程分析 · 数学 2020-11-17 Changzhen Sun

The purpose of this paper is to provide a large class of initial data which generates global smooth solution of the 3-D inhomogeneous incompressible Navier-Stokes system in the whole space~$\R^3$. This class of data is based on functions…

偏微分方程分析 · 数学 2015-05-29 Jean-Yves Chemin , Ping Zhang

In this work, a recently introduced general framework for trajectory statistical solutions is considered, and the question of convergence of families of such solutions is addressed. Conditions for the convergence are given which rely on…

偏微分方程分析 · 数学 2024-12-04 Anne C. Bronzi , Cecilia F. Mondaini , Ricardo M. S. Rosa

In this work, we present some new Carleman inequalities for Stokes and Oseen equations with non-homogeneous boundary conditions. These estimates lead to log type stability inequalities for the problem of recovering the solution of the…

偏微分方程分析 · 数学 2022-07-19 Mehdi Badra , Fabien Caubet , Jérémi Dardé

The Navier-Stokes motions in a box with periodic boundary conditions are considered. First the existence of global regular two-dimensional solutions is proved. The solutions are such that continuous with respect to time norms are controlled…

偏微分方程分析 · 数学 2016-06-16 Wojciech M. Zajaczkowski

We prove that the implicit time Euler scheme coupled with finite elements space discretization for the 2D Navier-Stokes equations on the torus subject to a random perturbation converges in $L^2(\Omega)$, and describe the rate of convergence…

概率论 · 数学 2020-04-16 Hakima Bessaih , Annie Millet