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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…

偏微分方程分析 · 数学 2020-03-31 Ibrokhimbek Akramov , Emil Wiedemann

We consider the Cauchy problem for the isentropic compressible Euler equations in a three-dimensional periodic domain under general pressure laws. For any smooth initial density away from the vacuum, we construct infinitely many entropy…

偏微分方程分析 · 数学 2022-07-13 Vikram Giri , Hyunju Kwon

We consider the Cauchy problem for the isentropic compressible Euler-Maxwell equations under general pressure laws in a three-dimensional periodic domain. For any smooth initial electron density away from the vacuum and smooth…

偏微分方程分析 · 数学 2023-05-23 Shunkai Mao , Peng Qu

We are concerned with the global existence and large time behavior of entropy solutions to the one dimensional unipolar hydrodynamic model for semiconductors in the form of Euler-Poisson equations in a bounded interval. In this paper, we…

偏微分方程分析 · 数学 2018-07-25 Feimin Huang , Tianhong Li , Huimin Yu , Difan Yuan

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,…

偏微分方程分析 · 数学 2015-05-13 Camillo De Lellis , László Székelyhidi

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…

偏微分方程分析 · 数学 2021-03-17 Sara Daneri , László Székelyhidi

In Part I of the paper, we prove non-uniqueness of the solution to the Cauchy problem of the Euler equations of an ideal incompressible fluid in dimension two with vorticity in some Lebesgue space. The radially symmetric external force is…

偏微分方程分析 · 数学 2018-05-25 Misha Vishik

In this work we consider weak solutions of the incompressible 2-D porous media equation. By using the approach of De Lellis-Sz\'ekelyhidi we prove non-uniqueness for solutions in $L^\infty$ in space and time.

偏微分方程分析 · 数学 2015-05-14 Diego Cordoba , Daniel Faraco , Francisco Gancedo

This paper studies the global existence and uniqueness of strong solutions and its large-time behavior for the compressible isothermal Euler equations with a nonlocal dissipation. The system is rigorously derived from the kinetic…

偏微分方程分析 · 数学 2018-01-16 Young-Pil Choi

In this paper we consider the isentropic compressible Euler equations in two space dimensions together with particular initial data. The latter consists only of two constant states, where one state lies on the lower and the other state on…

偏微分方程分析 · 数学 2017-10-09 Christian Klingenberg , Simon Markfelder

We investigate the Cauchy problem to the compressible planar non-resistive magnetohydrodynamic equations with zero heat conduction. The global existence of strong solutions to such a model has been established by Li and Li (J. Differential…

偏微分方程分析 · 数学 2023-02-17 Jinkai Li , Mingjie Li , Yang Liu , Xin Zhong

Using a recent result of C. De Lellis and L. Sz\'{e}kelyhidi Jr. we show that, in the case of periodic boundary conditions and for dimension greater or equal 2, there exist infinitely many global weak solutions to the incompressible Euler…

偏微分方程分析 · 数学 2013-05-06 Emil Wiedemann

We consider the Cauchy problem for the 3D incompressible axisymmetric swirl-free Euler equations. The convex integration method developed by De Lellis and Sz\'ekelyhidi rules out the possibility that the Euler equations admit unique…

偏微分方程分析 · 数学 2024-04-15 Patrick Brkic , Emil Wiedemann

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…

偏微分方程分析 · 数学 2020-04-02 Sara Daneri , Eris Runa , Laszlo Szekelyhidi

In this paper, we study the Cauchy problem of the compressible Euler system with strongly singular velocity alignment. We prove the existence and uniqueness of global solutions in critical Besov spaces to the considered system with small…

偏微分方程分析 · 数学 2022-07-07 Xiang Bai , Qianyun Miao , Changhui Tan , Liutang Xue

We introduce the notion of entropy solutions (e.s.) to a conservation law with an arbitrary jump continuous flux vector and prove existence of the largest and the smallest e.s. to the Cauchy problem. The monotonicity and stability…

偏微分方程分析 · 数学 2022-05-18 Evgeny Yu. Panov

We are concerned with spherically symmetric solutions to the Euler equations for the multi-dimensional compressible fluids, which have many applications in diverse real physical situations. The system can be reduced to one dimensional…

偏微分方程分析 · 数学 2019-08-20 Feimin Huang , Tianhong Li , Difan Yuan

An evidence of temporal dis-continuity of the solution in $F^s_{1, \infty}(\mathbb{R}^d)$ is presented, which implies the ill-posedness of the Cauchy problem for the Euler equations. Continuity and weak-type continuity of the solutions in…

偏微分方程分析 · 数学 2023-05-30 Hee Chul Pak

We consider the Cauchy problem for the barotropic Euler system coupled to Helmholtz or Poisson equations, in the whole space. We assume that the initial density is small enough, and that the initial velocity is close to some reference…

偏微分方程分析 · 数学 2019-06-20 Šárka Nečasová , Xavier Blanc , Raphaël Danchin , Bernard Ducomet , andš Nečasová

We consider the Cauchy problem for the barotropic Euler system coupled to a vector Schr\"{o}dinger equation in the whole space. Assuming that the initial density and vector potential are small enough, and that the initial velocity is close…

偏微分方程分析 · 数学 2025-05-22 Kuntal Bhandari , Bernard Ducomet , Šarka Nečasová , John Sebastian H. Simon
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