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We consider rotational initial data for the two-dimensional incompressible Euler equations on an annulus. Using the convex integration framework, we show that there exist infinitely many admissible weak solutions (i.e. such with…

Analysis of PDEs · Mathematics 2015-06-15 Claude Bardos , László Székelyhidi , Emil Wiedemann

We consider solutions to the Cauchy problem for the incompressible Euler equations satisfying several additional requirements, like the global and local energy inequalities. Using some techniques introduced in an earlier paper we show that,…

Analysis of PDEs · Mathematics 2015-05-13 Camillo De Lellis , László Székelyhidi

In this article, we will study unbounded solutions of the 2D incompressible Euler equations. One of the motivating factors for this is that the usual functional framework for the Euler equations (e.g. based on finite energy conditions, such…

Analysis of PDEs · Mathematics 2024-10-08 Dimitri Cobb , Herbert Koch

Building on the recent work of C. De Lellis and L. Sz\'{e}kelyhidi, we construct global weak solutions to the three-dimensional incompressible Euler equations which are zero outside of a finite time interval and have velocity in the…

Analysis of PDEs · Mathematics 2014-02-17 Philip Isett

We consider the 2-d isentropic compressible Euler equations. It was shown in by E. Chiodaroli, C. De Lellis and O. Kreml that there exist Riemann initial data as well as Lipschitz initial data for which there exist infinitely many weak…

Analysis of PDEs · Mathematics 2019-01-21 Simon Markfelder , Christian Klingenberg

This paper is concerned with the existence of compactly supported admissible solutions to the Cauchy problem for the isentropic compressible Euler equations. In more than one space dimension, convex integration techniques developed by De…

Analysis of PDEs · Mathematics 2020-03-31 Ibrokhimbek Akramov , Emil Wiedemann

A slightly modified variant of the cubic periodic one-dimensional nonlinear Schroedinger equation is shown to admit weak solutions for all initial data in certain function spaces wider than L^2. These solutions depend uniformly continuously…

Analysis of PDEs · Mathematics 2007-05-23 Michael Christ

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 the limit $\alpha\to0$ for the $\alpha$-Euler equations in a two-dimensional bounded domain with Dirichlet boundary conditions. Assuming that the vorticity is bounded in $L^p$, we prove the existence of a global solution and we…

Analysis of PDEs · Mathematics 2017-12-06 Adriana Valentina Busuioc , Dragoş Iftimie

We establish the existence of global weak solutions of the 2D incompressible Euler equation, for a large class of non-smooth open sets. These open sets are the complements (in a simply connected domain) of a finite number of connected…

Analysis of PDEs · Mathematics 2013-01-03 David Gérard-Varet , Christophe Lacave

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

In this paper we address the Cauchy problem for the incompressible Euler equations in the periodic setting. Based on estimates developed in [Buckmaster-De Lellis-Isett-Sz\'ekelyhidi], we prove that the set of H\"older $1\slash 5-\eps$ wild…

Analysis of PDEs · Mathematics 2021-03-17 Sara Daneri , László Székelyhidi

In this paper, we prove the non-uniqueness of stationary solutions to steady incompressible Euler equations with source terms. Based on the convex integration scheme developed by De Lellis and Sz\'{e}kelyhidi, the Euler system is…

Analysis of PDEs · Mathematics 2024-05-15 Anxiang Huang

We deal with entropy solutions to the Cauchy problem for the isentropic compressible Euler equations in the space-periodic case. In more than one space dimension, the methods developed by De Lellis-Sz\'ekelyhidi enable us to show failure of…

Analysis of PDEs · Mathematics 2014-08-26 Elisabetta Chiodaroli

Building on the work of Crouseilles and Faou on the 2D case, we construct $C^\infty$ quasi-periodic solutions to the incompressible Euler equations with periodic boundary conditions in dimension 3 and in any even dimension. These solutions…

Analysis of PDEs · Mathematics 2022-09-21 Alberto Enciso , Daniel Peralta-Salas , Francisco Torres de Lizaur

In our previous work (arXiv:2510.00812), we have shown the global existence and incompressible limit of weak solutions to the isentropic compressible magnetohydrodynamic equations involving ripped density and large initial energy in the…

Analysis of PDEs · Mathematics 2025-11-04 Shuai Wang , Guochun Wu , Xin Zhong

We consider an ensemble of classical particles coupled to a Klein-Gordon field. For the resulting nonlinear system of partial differential equations, which we call the relativistic Vlasov-Klein-Gordon system, we prove the existence of…

Analysis of PDEs · Mathematics 2009-11-07 Michael Kunzinger , Gerhard Rein , Roland Steinbauer , Gerald Teschl

We give a new sufficient criteria to prove the uniqueness of the incompressible Euler equation in dimension $N\geq2$. In their celebrated works by V. Scheffer [18], A. Shnirelman [19], C. De Lellis and L. Sz\'ekelyhidi Jr. [7] they have…

Analysis of PDEs · Mathematics 2019-06-13 Shyam Sundar Ghoshal , Animesh Jana

In this paper we deal with the Cauchy problem for the incompressible Euler equations in the three-dimensional periodic setting. We prove non-uniqueness for an $L^2$-dense set of H\"older continuous initial data in the class of H\"older…

Analysis of PDEs · Mathematics 2020-04-02 Sara Daneri , Eris Runa , Laszlo Szekelyhidi

In this paper, we mainly investigate the tridimensional incompressible axisymmetric Euler equations without swirl in the whole space. Specifically, we prove the global existence of weak solutions if the swirl component of initial vorticity…

Analysis of PDEs · Mathematics 2017-08-16 Quansen Jiu , Jitao Liu , Dongjuan Niu
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