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Related papers: Onsager's conjecture for admissible weak solutions

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The weak solution to the Navier-Stokes equations in a bounded domain $D \subset \mathbb{R}^3$ with a smooth boundary is proved to be unique provided that it satisfies an additional requirement. This solution exists for all $t \geq 0$. In a…

Mathematical Physics · Physics 2012-09-11 A. G. Ramm

In this paper, we investigate the ideal magnetohydrodynamics (MHD) equations on tours $\TTT^d$. For $d=3$, we resolve the flexible part of Onsager-type conjecture for Els\"{a}sser energies of the ideal MHD equations. More precisely, for…

Analysis of PDEs · Mathematics 2025-04-09 Changxing Miao , Yao Nie , Weikui Ye

We consider weak stationary solutions to the incompressible Euler equations and show that the analogue of the h-principle obtained in [5, 7] for time-dependent weak solutions continues to hold. The key difference arises in dimension d = 2,…

Analysis of PDEs · Mathematics 2014-05-22 Antoine Choffrut , László Székelyhidi

We consider weak solutions to the incompressible Euler equations. It is shown that energy conservation holds in any Onsager critical class in which smooth functions are dense. The argument is independent of the specific critical regularity…

Analysis of PDEs · Mathematics 2026-01-08 Luigi De Rosa , Marco Inversi , Matteo Nesi

We consider the incompressible Euler equations in a bounded domain in three space dimensions. Recently, the first two authors proved Onsager's conjecture for bounded domains, i.e., that the energy of a solution to these equations is…

Analysis of PDEs · Mathematics 2019-07-24 Claude Bardos , Edriss Titi , Emil Wiedemann

In this paper we prove the almost sure existence of global weak solution to the 3D incompressible Navier-Stokes Equation for a set of large data in $\dot{H}^{-\alpha}(\mathbb{R}^{3})$ or $\dot{H}^{-\alpha}(\mathbb{T}^{3})$ with…

Analysis of PDEs · Mathematics 2016-11-01 Jingrui Wang , Keyan Wang

In this paper we continue the analytical study of the sabra shell model of energy turbulent cascade initiated in \cite{CLT05}. We prove the global existence of weak solutions of the inviscid sabra shell model, and show that these solutions…

Fluid Dynamics · Physics 2013-05-29 Peter Constantin , Boris Levant , Edriss S. Titi

We are concerned with strong axisymmetric solutions to the $3$D incompressible Navier-Stokes equations. We show that if the weak $L^3$ norm of a strong solution $u$ on the time interval $[0,T]$ is bounded by $A \gg 1$ then for each $k\geq 0…

Analysis of PDEs · Mathematics 2023-07-20 W. S. Ożański , S. Palasek

We prove that if the local second-order structure function exponents in the inertial range remain positive uniformly in viscosity, then any spacetime $L^2$ weak limit of Leray--Hopf weak solutions of the Navier-Stokes equations on any…

Analysis of PDEs · Mathematics 2018-11-14 Theodore D. Drivas , Huy Q. Nguyen

In this article we focus our attention on the principle of energy conservation within the context of systems of fluid dynamics. We give an overview of results concerning the resolution of the famous Onsager conjecture - which states…

Analysis of PDEs · Mathematics 2017-08-01 Tomasz Dębiec , Piotr Gwiazda , Agnieszka Świerczewska-Gwiazda

In this paper, we consider weak solutions of the Euler-Lagrange equation to a variational energy functional modeling the geometrically nonlinear Cosserat micropolar elasticity of continua in dimension three, which is a system coupling…

Analysis of PDEs · Mathematics 2020-01-01 Yimei Li , Changyou Wang

We show the existence of H\"{o}lder continuous periodic weak solutions of the 2d Boussinesq equation with diffusive temperature which satisfy the prescribed kinetic energy. More precisely, for any smooth $e(t):[0,1]\rightarrow R_+$ and…

Analysis of PDEs · Mathematics 2019-05-27 Tianwen Luo , Tao Tao , Liqun Zhang

It is shown that a weak solution with monotone-decreasing kinetic energy satisfies the strong energy inequality. Using this criterion, we analyze the behavior with respect to time for all weak solutions without any further assumption on…

Fluid Dynamics · Physics 2025-02-06 Min Chul Lee

We show that for any $\al<\frac 17$ there exist $\al$-H\"older continuous weak solutions of the three-dimensional incompressible Euler equation, which satisfy the local energy inequality and strictly dissipate the total kinetic energy. The…

Analysis of PDEs · Mathematics 2023-02-15 Camillo De Lellis , Hyunju Kwon

We study weak solutions of the incompressible Euler equations on $\mathbb{T}^2\times \mathbb{R}_+$; we use test functions that are divergence free and have zero normal component, thereby obtaining a definition that does not involve the…

Analysis of PDEs · Mathematics 2018-06-04 James C. Robinson , José L. Rodrigo , Jack W. D. Skipper

Smooth solutions of the forced incompressible Euler equations satisfy an energy balance, where the rate-of-change in time of the kinetic energy equals the work done by the force per unit time. Interesting phenomena such as turbulence are…

Analysis of PDEs · Mathematics 2024-04-22 Fabian Jin , Samuel Lanthaler , Milton C. Lopes Filho , Helena J. Nussenzveig Lopes

We show that a suitable weak solution to the incompressible Navier-Stokes equations on ${\mathbb{R}^3\times(-1,1)}$ is regular on $\mathbb{R}^3\times(0,1]$ if $\partial_3 u $ belongs to $M^{2p/(2p-3),\alpha } ((-1,0);L^p (\mathbb{R}^3 ))$…

Analysis of PDEs · Mathematics 2023-07-07 Igor Kukavica , Wojciech S. Ożański

In dimension $n=2$ and $3$, we show that for any initial datum belonging to a dense subset of the energy space, there exist infinitely many global-in-time admissible weak solutions to the isentropic Euler system whenever $1<\gamma\leq…

Analysis of PDEs · Mathematics 2021-03-09 Robin Ming Chen , Alexis F. Vasseur , Cheng Yu

So far existence of dissipative weak solutions for the compressible Navier-Stokes equations (i.e. weak solutions satisfying the relative energy inequality) is known only in the case of boundary conditions with non zero inflow/outflow (i.e.,…

Analysis of PDEs · Mathematics 2019-05-08 Young-Sam Kwon , Antonin Novotny , Vladyslav Satko

Let $(u, \pi)$ with $u=(u_1,u_2,u_3)$ be a suitable weak solution of the three dimensional Navier-Stokes equations in $\mathbb{R}^3\times [0, T]$. Denote by $\dot{\mathcal{B}}^{-1}_{\infty,\infty}$ the closure of $C_0^\infty$ in…

Analysis of PDEs · Mathematics 2021-03-16 Zhouyu Li , Daoguo Zhou