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Dissipative solutions have recently been studied as a generalized concept for weak solutions of the complete Euler system. Apparently, these are expectations of suitable measure-valued solutions. Motivated from [Feireisl, Ghoshal and Jana,…

偏微分方程分析 · 数学 2020-05-14 Shyam Sundar Ghoshal , Animesh Jana

We introduce the concept of a dissipative measure-valued solution to the Euler alignment system. This approach incorporates a modified total energy balance, utilizing a binary tensor Young measure. The central finding is a weak…

偏微分方程分析 · 数学 2024-12-13 Abhishek Chaudhary , Ujjwal Koley , Emil Wiedemann

We consider a class of viscous fluids with a general monotone dependence of the viscous stress on the symmetric velocity gradient. We introduce the concept of dissipative solution to the associated initial boundary value problem inspired by…

偏微分方程分析 · 数学 2019-06-04 A. Abbatiello , E. Feireisl

We introduce the concept of dissipative measure-valued solution to the complete Euler system describing the motion of an inviscid compressible fluid. These solutions are characterized by a parameterized (Young) measure and a dissipation…

偏微分方程分析 · 数学 2017-02-17 Jan Brezina , Eduard Feireisl

We establish a weak-strong uniqueness result for the isentropic compressible Euler equations, that is: As long as a sufficiently regular solution exists, all energy-admissible weak solutions with the same initial data coincide with it. The…

偏微分方程分析 · 数学 2021-03-31 Shyam Sundar Ghoshal , Animesh Jana , Emil Wiedemann

The Cauchy problem for the complete Euler system is in general ill posed in the class of admissible (entropy producing) weak solutions. This suggests there might be sequences of approximate solutions that develop fine scale oscillations.…

数值分析 · 数学 2018-03-23 Eduard Feireisl , Maria Lukacova-Medvidova , Hana Mizerova

We propose a new approach to models of general compressible viscous fluids based on the concept of dissipative solutions. These are weak solutions satisfying the underlying equations modulo a defect measure. A dissipative solution coincides…

偏微分方程分析 · 数学 2020-01-01 Anna Abbatiello , Eduard Feireisl , Antonin Novotny

We discuss several approaches to generalized solutions of problems describing the motion of inviscid fluids. We propose a new concept of dissipative solution to the compressible Euler system based on a careful analysis of possible…

偏微分方程分析 · 数学 2019-07-04 Dominic Breit , Eduard Feireisl , Martina Hofmanova

We show that any dissipative (measure-valued) solution of the compressible Euler system that complies with Dafermos' criterion of maximal dissipation is necessarily an admissible weak solution. In addition, we propose a simple, at most two…

偏微分方程分析 · 数学 2025-01-23 Eduard Feireisl , Ansgar Jüngel , Mária Lukáčová-Medvid'ová

It is nowadays well understood that the multidimensional isentropic Euler system is desperately ill--posed. Even certain smooth initial data give rise to infinitely many solutions and all available selection criteria fail to ensure both…

偏微分方程分析 · 数学 2019-09-04 Dominic Breit , Eduard Feireisl , Martina Hofmanova

For the equations of elastodynamics with polyconvex stored energy, and some related simpler systems, we define a notion of dissipative measure-valued solution and show that such a solution agrees with a classical solution with the same…

偏微分方程分析 · 数学 2012-06-12 Sophia Demoulini , David Stuart , Athanasios Tzavaras

We study the three-dimensional incompressible Euler equations subject to stochastic forcing. We develop a concept of dissipative martingale solutions, where the nonlinear terms are described by generalised Young measures. We construct these…

偏微分方程分析 · 数学 2021-07-28 Dominic Breit , Thamsanqa Castern Moyo

We consider admissible weak solutions to the compressible Euler system with source terms, which include rotating shallow water system and the Euler system with damping as special examples. In the case of anti-symmetric sources such as…

偏微分方程分析 · 数学 2015-06-04 Tianwen Luo , Chunjing Xie , Zhouping Xin

In this short note we partially extend the recent nonuniqueness results on admissible weak solutions to the Riemann problem for the 2D compressible isentropic Euler equations. We prove nonuniqueness of admissible weak solutions that start…

偏微分方程分析 · 数学 2017-07-04 Jan Březina , Elisabetta Chiodaroli , Ondřej Kreml

Contrary to the incompressible case not every measure-valued solution of the compressible Euler equations can be generated by weak solutions or a vanishing viscosity sequence. In the present paper we give sufficient conditions on an…

偏微分方程分析 · 数学 2023-03-14 Dennis Gallenmüller , Emil Wiedemann

In this paper, we propose a new approach to singular limits of inviscid fluid flows based on the concept of dissipative measure-valued solutions. We show that dissipative measure-valued solutions of the compressible Euler equations converge…

偏微分方程分析 · 数学 2019-05-06 Eduard Feireisl , Christian Klingenberg , Simon Markfelder

In this paper we extend and complement some recent results by Chiodaroli, De Lellis and Kreml on the well-posedness issue for weak solutions of the compressible isentropic Euler system in $2$ space dimensions with pressure law…

偏微分方程分析 · 数学 2014-08-26 Elisabetta Chiodaroli , Ondřej Kreml

This paper is concerned with a compressible MHD equations describing the evolution of viscous non-resistive fluids in piecewise regular bounded Lipschitz domains. Under the general inflow-outflow boundary conditions, we prove existence of…

偏微分方程分析 · 数学 2025-01-28 Yang Li , Young-Sam Kwon , Yongzhong Sun

We consider the isentropic compressible Euler system in 2 space dimensions with pressure law $p({\rho}) = {\rho}^2$ and we show the existence of classical Riemann data, i.e. pure jump discontinuities across a line, for which there are…

偏微分方程分析 · 数学 2014-08-26 Elisabetta Chiodaroli , Camillo De Lellis , Ondrej Kreml

For general hyperbolic systems of conservation laws we show that dissipative weak solutions belonging to an appropriate Besov space $B^{\alpha,\infty}_q$ and satisfying a one-sided bound condition are unique within the class of dissipative…

偏微分方程分析 · 数学 2020-07-22 Shyam Sundar Ghoshal , Animesh Jana , Konstantinos Koumatos
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