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The work addresses a singular limit for a rotating compressible Euler system in the low Mach number and low Rossby number regime. Based on the concept of dissipative measure-valued solution, the quasi-geostrophic system is identified as the…

偏微分方程分析 · 数学 2020-02-04 Sarka Necasova , Tong Tang

We prove via convex integration a result that allows to pass from a so-called subsolution of the isentropic Euler equations (in space dimension at least $2$) to exact weak solutions. The method is closely related to the incompressible…

偏微分方程分析 · 数学 2021-07-23 Tomasz Dębiec , Jack W. D. Skipper , Emil Wiedemann

This paper contributes to the study of large data problems for $C^1$ solutions of the relativistic Euler equations. In the $(1+1)$-dimensional spacetime setting, if the initial data are away from vacuum, a key difficulty in proving the…

偏微分方程分析 · 数学 2019-03-19 Nikolaos Athanasiou , Shengguo Zhu

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 show how to obtain general nonlinear aggregation-diffusion models, including Keller-Segel type models with nonlinear diffusions, as relaxations from nonlocal compressible Euler-type hydrodynamic systems via the relative entropy method.…

偏微分方程分析 · 数学 2019-10-29 José A. Carrillo , Yingping Peng , Aneta Wróblewska-Kamińska

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 consider the three dimensional Cauchy problem of the compressible micropolar viscous flows, we prove the existence of unique global classical solution for smooth initial data with small initial energy but possibly large…

偏微分方程分析 · 数学 2022-12-28 Canze Zhu , Qiang Tao

We are concerned with the isentropic compressible Navier-Stokes system in the two-dimensional torus, with rough data and vacuum : the initial velocity is in the Sobolev space H^1 and the initial density is only bounded and nonnegative.…

偏微分方程分析 · 数学 2023-11-03 Raphaël Danchin , Shan Wang

We study compressible types in the context of (local and global) NIP. By extending a result in machine learning theory (the existence of a bound on the recursive teaching dimension), we prove density of compressible types. Using this, we…

逻辑 · 数学 2026-04-02 Martin Bays , Itay Kaplan , Pierre Simon

We consider a hydrodynamic model of flocking-type with all-to-all interaction kernel in one-space dimension and establish that the global entropy weak solutions, constructed in [2] to the Cauchy problem for any $BV$ initial data that has…

偏微分方程分析 · 数学 2023-09-06 Debora Amadori , Cleopatra Christoforou

Using graph of groups decompositions of finitely generated groups, we define Euler characteristic type invariants which are non-zero in many interesting classes of finitely presented, hyperbolic, limit and CSA groups, including elementarily…

群论 · 数学 2018-02-22 Mihalis Sykiotis

We consider the Savage-Hutter system consisting of two-dimensional depth-integrated shallow water equations for the incompressible fluid with the Coulomb-type friction term. Using the method of convex integration we show that the associated…

偏微分方程分析 · 数学 2017-06-14 Eduard Feireisl , Piotr Gwiazda , Agnieszka Swierczewska-Gwiazda

This paper is devoted to the study of relativistic Vlasov-Maxwell system in three space dimension. For a class of large initial data, we prove the global existence of classical solution with sharp decay estimate. The initial Maxwell field…

偏微分方程分析 · 数学 2021-02-24 Dongyi Wei , Shiwu Yang

In this paper we consider the multi-dimensional pressureless Euler system and we tackle the problem of existence and uniqueness of sticky particle solutions for general measure-type initial data. Although explicit counterexamples to both…

偏微分方程分析 · 数学 2020-04-15 Bianchini Stefano , Daneri Sara

We establish the global existence and uniqueness of classical solutions to the three-dimensional full compressible Navier-Stokes system with smooth initial data which are of small energy but possibly large oscillations where the initial…

数学物理 · 物理学 2011-08-08 Xiangdi Huang , Jing Li

For $\beta<\frac13$, we consider $C^\beta(\mathbb{T}^3\times [0,T])$ weak solutions of the incompressible Euler equations that do not conserve the kinetic energy. We prove that for such solutions the closed and non-empty set of singular…

偏微分方程分析 · 数学 2021-02-12 Luigi De Rosa , Silja Haffter

We consider global-in-time evolution of irrotational, isentropic, compressible Euler flow in $3$-D, for a broad class of $H^4$ classical Cauchy data without assuming symmetry, prescribed on an annulus surrounded by a constant state in the…

偏微分方程分析 · 数学 2025-01-03 Qian Wang

This article is concerned with the analysis of the one-dimensional compressible Euler equations with a singular pressure law, the so-called hard sphere equation of state. The result is twofold. First, we establish the existence of bounded…

偏微分方程分析 · 数学 2021-09-22 Roberta Bianchini , Charlotte Perrin

We discuss the problem of well-posedness of the compressible (barotropic) Euler system in the framework of weak solutions. The principle of maximal dissipation introduced by C.M. Dafermos is adapted and combined with the concept of…

偏微分方程分析 · 数学 2015-06-17 Eduard Feireisl

We address a free boundary model for the compressible Euler equations where the free boundary, which is elastic, evolves according to a weakly damped fourth order hyperbolic equation forced by the fluid pressure. This system captures the…

偏微分方程分析 · 数学 2023-11-16 Igor Kukavica , Šárka Nečasová , Amjad Tuffaha