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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 $\mathbb{T}\times [0,1]$ when the initial perturbation is in…

Analysis of PDEs · Mathematics 2025-02-06 Weiren Zhao

We prove linear inviscid damping near a general class of monotone shear flows in a finite channel, in Gevrey spaces. It is an essential step towards proving nonlinear inviscid damping for general shear flows that are not close to the…

Analysis of PDEs · Mathematics 2019-09-04 Hao Jia

We prove nonlinear asymptotic stability of a large class of monotonic shear flows among solutions of the 2D Euler equations in the channel $\mathbb{T}\times[0,1]$. More precisely, we consider shear flows $(b(y),0)$ given by a function $b$…

Analysis of PDEs · Mathematics 2020-01-10 Alexandru D. Ionescu , Hao Jia

In this article, we prove linear stability, scattering and inviscid damping with optimal decay rates for the linearized 2D Euler equations around a large class of strictly monotone shear flows, $(U(y),0)$, in a periodic channel under…

Analysis of PDEs · Mathematics 2015-06-15 Christian Zillinger

In a recent article Jia established linear inviscid damping in Gevrey regularity for compactly supported Gevrey regular shear flows in a finite channel, which is of great interest in view of existing nonlinear results. In this article we…

Analysis of PDEs · Mathematics 2019-11-05 Christian Zillinger

We give an elementary proof of sharp decay rates and the linear inviscid damping near monotone shear flow in a periodic channel, first obtained in [14]. We shall also obtain the precise asymptotics of the solutions, measured in the space…

Analysis of PDEs · Mathematics 2019-02-20 Hao Jia

We study the dynamics of the two dimensional Navier Stokes equations linearized around a strictly monotonic shear flow on $\mathbb{T}\times\mathbb{R}$. The main task is to understand the associated Rayleigh and Orr-Sommerfeld equations,…

Analysis of PDEs · Mathematics 2023-05-24 Hao Jia

We prove asymptotic stability of shear flows in a neighborhood of the Couette flow for the 2D Euler equations in the domain $\T\times[0,1]$. More precisely we prove that if we start with a small and smooth perturbation (in a suitable Gevrey…

Analysis of PDEs · Mathematics 2019-10-02 Alexandru Ionescu , Hao Jia

We give a proof of linear inviscid damping and vorticity depletion for non-monotonic shear flows with one critical point in a bounded periodic channel. In particular, we obtain quantitative depletion rates for the vorticity function without…

Analysis of PDEs · Mathematics 2024-02-01 Alexandru D. Ionescu , Sameer Iyer , Hao Jia

In this note we revisit the proof of Bedrossian and Masmoudi [arXiv:1306.5028] about the inviscid damping of planar shear flows in the 2D Euler equations under the assumption of zero mean perturbation. We prove that a small perturbation to…

Analysis of PDEs · Mathematics 2019-03-06 Michele Dolce

In this paper, we study the linear inviscid damping for the linearized $\beta$-plane equation around shear flows. We develop a new method to give the explicit decay rate of the velocity for a class of monotone shear flows. This method is…

Analysis of PDEs · Mathematics 2018-09-11 Dongyi Wei , Zhifei Zhang , Hao Zhu

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. For the symmetric flows, we obtain the explicit decay…

Analysis of PDEs · Mathematics 2017-04-04 Dongyi Wei , Zhifei Zhang , Weiren Zhao

In this paper, we prove the decay estimates of the velocity and $H^1$ scattering for the 2D linearized Euler equations around a class of monotone shear flow in a finite channel. Our result is consistent with the decay rate predicted by Case…

Analysis of PDEs · Mathematics 2015-09-29 Dongyi Wei , Zhifei Zhang , Weiren Zhao

We study the linear asymptotic stability of stably stratified monotone shear flows for the Boussinesq equations in the periodic channel. By means of the limiting absorption principle, we obtain a precise description of the inviscid damping…

Analysis of PDEs · Mathematics 2025-11-03 Alberto Enciso , Marc Nualart

We prove the asymptotic stability of shear flows close to the Couette flow for the 2-D inhomogeneous incompressible Euler equations on $\mathbb{T}\times \mathbb{R}$. More precisely, if the initial velocity is close to the Couette flow and…

Analysis of PDEs · Mathematics 2023-03-28 Qi Chen , Dongyi Wei , Ping Zhang , Zhifei Zhang

We study the large time behavior of solutions to two-dimensional Euler and Navier-Stokes equations linearized about shear flows of the mixing layer type in the unbounded channel $\mathbb{T} \times \mathbb{R}$. Under a simple spectral…

Analysis of PDEs · Mathematics 2018-04-24 Emmanuel Grenier , Toan T. Nguyen , Frédéric Rousset , Avy Soffer

We prove asymptotic stability of shear flows close to the planar Couette flow in the 2D inviscid Euler equations on $\Torus \times \Real$. That is, given an initial perturbation of the Couette flow small in a suitable regularity class,…

Analysis of PDEs · Mathematics 2014-04-23 Jacob Bedrossian , Nader Masmoudi

In this paper, we study the generation of eigenvalues of a stable monotonic shear flow under perturbations in $C^s$ with $s<2$. More precisely, we study the Rayleigh operator $\mathcal{L}_{U_{m,\gamma}}=…

Analysis of PDEs · Mathematics 2023-07-20 Daniel Sinambela , Weiren Zhao

In a previous article, \cite{Zill3}, we have established linear inviscid damping for a large class of monotone shear flows in a finite periodic channel and have further shown that boundary effects asymptotically lead to the formation of…

Analysis of PDEs · Mathematics 2016-03-23 Christian Zillinger

We study the stability of spectrally stable, strictly monotone, smooth shear flows in the 2D Navier-Stokes equations on $\mathbb{T} \times \mathbb{R}$ with small viscosity $\nu$. We establish nonlinear stability in $H^s$ for $s \geq 2$ with…

Analysis of PDEs · Mathematics 2024-12-02 Rajendra Beekie , Siming He
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