activity
20152026
most citedStability threshold of the 2D Couette flow in Sobolev spaces

70 citations · 233 across the 26 of their papers we have counts for

collaborators

26 papers

math.AP2026

Couette Flow with Robin Boundary Condition (I): the viscosity-independent friction

Siming He, Binqian Niu, Weiren Zhao

This article is the first paper in the series. In this series of articles, we will examine the influence of the friction factor at the solid--fluid boundary on the stability of…

math.AP2026

Long-time behaviour of two-dimensional Navier-Stokes equations in the presence of Couette flow on the half plane

Ning Liu, Nader Masmoudi, Weiren Zhao

In this paper, we study the long-time behavior of solutions to the two-dimensional Navier-Stokes equations in the presence of Couette flow on the half plane with Navier-slip bounda…

math.AP2026

Optimal stability threshold in lower regularity spaces for the Vlasov-Poisson-Fokker-Planck equations

Weiren Zhao, Ruizhao Zi

In this paper, we study the optimal stability threshold for the Vlasov-Poisson equation with weak Fokker-Planck collision. We prove that if the initial perturbation is of size $ν^{…

math.AP2024

Asymptotic stability of the three-dimensional Couette flow for the Stokes-transport equation

Daniel Sinambela, Weiren Zhao, Ruizhao Zi

In this paper, we investigate the asymptotic stability of the three-dimensional Couette flow in a stratified fluid governed by the Stokes-transport equation. We observe that a simi…

math.AP2024

Asymptotic Stability of the two-dimensional Couette flow for the Stokes-transport equation in a finite channel

Daniel Sinambela, Weiren Zhao, Ruizhao Zi

We study the Stokes-transport system in a two-dimensional channel with horizontally moving boundaries, which serves as a reduced model for oceanography and sedimentation. The densi…

math.AP2024

Landau damping, collisionless limit, and stability threshold for the Vlasov-Poisson equation with nonlinear Fokker-Planck collisions

Jacob Bedrossian, Weiren Zhao, Ruizhao Zi

In this paper, we study the Vlasov-Poisson-Fokker-Planck (VPFP) equation with a small collision frequency , exploring the interplay between the regularity and size of p…

math.AP2023★ 2 cited

Asymptotic stability in the critical space of 2D monotone shear flow in the viscous fluid

Hui Li, Weiren Zhao

In this paper, we study the long-time behavior of the solutions to the two-dimensional incompressible free Navier Stokes equation (without forcing) with small viscosity , when t…

math.AP2023★ 1 cited

Asymptotic stability of Couette flow in a strong uniform magnetic field for the Euler-MHD system

Weiren Zhao, Ruizhao Zi

In this paper, we prove the asymptotic stability of Couette flow in a strong uniform magnetic field for the Euler-MHD system, when the perturbations are in Gevrey-, $(…

math.AP2023★ 8 cited

Inviscid damping of monotone shear flows for 2D inhomogeneous Euler equation with non-constant density in a finite channel

Weiren Zhao

We prove the nonlinear inviscid damping for a class of monotone shear flows with non-constant background density for the two-dimensional ideal inhomogeneous fluids in $\mathbb{T}\t…

math.AP2023

The transition to instability for stable shear flows in inviscid fluids

Daniel Sinambela, Weiren Zhao

In this paper, we study the generation of eigenvalues of a stable monotonic shear flow under perturbations in with . More precisely, we study the Rayleigh operator $\mat…

math.AP2022

Asymptotic stability of two-dimensional Couette flow in a viscous fluid

Hui Li, Nader Masmoudi, Weiren Zhao

In this paper, we study the nonlinear asymptotic stability of Couette flow for the two-dimensional Navier-Stokes equation with small viscosity in …

math.AP2022★ 1 cited

Stability threshold of the Couette flow for Navier-Stokes Boussinesq system with large Richardson number

Cuili Zhai, Weiren Zhao

In this paper, we study the nonlinear asymptotic stability of the Couette flow in the stably stratified regime, namely the Richardson number . Precisely, we prove…

math.AP2022★ 22 cited

A dynamical approach to the study of instability near Couette flow

Hui Li, Nader Masmoudi, Weiren Zhao

In this paper, we obtain the optimal instability threshold of the Couette flow for Navier-Stokes equations with small viscosity , when the perturbations are in the critical sp…

math.AP2022

Asymptotic stability for two-dimensional Boussinesq systems around the Couette flow in a finite channel

Nader Masmoudi, Cuili Zhai, Weiren Zhao

In this paper, we study the asymptotic stability for the two-dimensional Navier-Stokes Boussinesq system around the Couette flow with small viscosity and small thermal diffusio…

math.AP2021★ 9 cited

Metastability for the dissipative quasi-geostrophic equation and the non-local enhancement

Hui Li, Weiren Zhao

In this paper, we study the metastability for the 2-D linearized dissipative quasi-geostrophic equation with small viscosity around the quasi steady state $θ_{sin}=e^{-νt}\sin…

math.AP2021

Linear damping and depletion in flowing plasma with strong sheared magnetic fields

Han Liu, Nader Masmoudi, Cuili Zhai +1

In this paper, we study the long-time behavior of the solution for the linearized ideal MHD around sheared velocity and magnetic field under Stern stability condition. We prove tha…

math.AP2020★ 3 cited

Stability of Couette flow for 2D Boussinesq system without thermal diffusivity

Nader Masmoudi, Belkacem Said-Houari, Weiren Zhao

In this paper, we prove the stability of Couette flow for 2D Navier-Stokes Boussinesq system without thermal diffusivity for the initial perturbation in Gevrey-, ($1/3…

math.AP2020★ 39 cited

Nonlinear inviscid damping for a class of monotone shear flows in finite channel

Nader Masmoudi, Weiren Zhao

We prove the nonlinear inviscid damping for a class of monotone shear flows in for initial perturbation in Gevrey-() class with compact support. The main…

math.AP2019★ 70 cited

Stability threshold of the 2D Couette flow in Sobolev spaces

Nader Masmoudi, Weiren Zhao

We study the stability threshold of the 2D Couette flow in Sobolev spaces at high Reynolds number . We prove that if the initial vorticity satisfies $\|Ω_{in}-(-1)\|_{…

math.AP2019★ 3 cited

Enhanced dissipation for the 2D Couette flow in critical space

Nader Masmoudi, Weiren Zhao

We consider the 2D incompressible Navier-Stokes equations on , with initial vorticity that is close in to (the vorticity of…

math.AP2018★ 14 cited

Long time behavior of Alfvén waves in a flowing plasma: mathematical analysis on the generation of the magnetic island

Cuili Zhai, Zhifei Zhang, Weiren Zhao

In this paper, we consider the generation of magnetic island for the linearized MHD equations around the steady flowing plasma with velocity field and magnetic field…

math.AP2017★ 25 cited

Linear inviscid damping and enhanced dissipation for the Kolmogorov flow

Dongyi Wei, Zhifei Zhang, Weiren Zhao

In this paper, we prove the linear inviscid damping and voticity depletion phenomena for the linearized Euler equations around the Kolmogorov flow. These results confirm Bouchet an…

math.AP2017★ 20 cited

Linear inviscid damping and vorticity depletion for shear flows

Dongyi Wei, Zhifei Zhang, Weiren Zhao

In this paper, we prove the linear damping for the 2-D Euler equations around a class of shear flows under the assumption that the linearized operator has no embedding eigenvalues.…

math.AP2017

Commutator Estimates for the Dirichlet-to-Neumann Map of Stokes Systems in Lipschitz Domains

Qiang Xu, Weiren Zhao, Shulin Zhou

In the paper, we establish commutator estimates for the Dirichlet-to-Neumann map of Stokes systems in Lipschitz domains. The approach is based on Dahlberg's bilinear estimates, and…