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Conservation laws of a class of time-dependent damped nonlinear multidimensional wave equations are derived by Noether's theorem. For arbitrary nonzero damping coefficient and nonlinear interaction term, its infinitesimal variational…

数学物理 · 物理学 2026-05-15 F. Güngör , C. Özemir

In this paper, we study the precise decay rate in time to solutions of the Cauchy problem for the one-dimensional conservation law with a nonlinearly degenerate viscosity where the far field states are prescribed. Especially, we deal with…

偏微分方程分析 · 数学 2015-02-18 Natsumi Yoshida

The Van Leer approach for the approximation of nonlinear scalar conservation laws is studied in one space dimension. The problem can be reduced to a nonlinear interpolation and we propose a convexity property for the interpolated values. We…

数值分析 · 数学 2010-07-28 François Dubois

We study a mathematical model describing the dynamics of dislocation densities in crystals. This model is expressed as a one-dimensional system of a parabolic equation and a first order Hamilton-Jacobi equation that are coupled together. We…

偏微分方程分析 · 数学 2007-05-23 Hassan Ibrahim

A nonlinear Lorentz invariant kinetic diffusion equation is introduced, which is consistent with the conservation laws of particles number, energy and momentum. The equilibrium solution converges to the Maxwellian density in the Newtonian…

广义相对论与量子宇宙学 · 物理学 2025-11-14 Simone Calogero

We consider a scalar conservation law with source in a bounded open interval $\Omega\subseteq\mathbb R$. The equation arises from the macroscopic evolution of an interacting particle system. The source term models an external effort driving…

偏微分方程分析 · 数学 2024-05-29 Lu Xu

The purpose of this work is to analyze the mathematical model governing motion of $n$-component, heat conducting reactive mixture of compressible gases. We prove sequential stability of weak variational entropy solutions when the state…

偏微分方程分析 · 数学 2013-12-17 Ewelina Zatorska

In this paper we establish well-posedness for scalar conservation laws on closed manifolds M endowed with a constant or a time-dependent Riemannian metric for initial values in L^\infty(M). In particular we show the existence and uniqueness…

偏微分方程分析 · 数学 2014-02-04 Daniel Lengeler , Thomas Müller

Initial-boundary value problems for second order fully nonlinear PDEs with Caputo time fractional derivatives of order less than one are considered in the framework of viscosity solution theory. Associated boundary conditions are Dirichlet…

偏微分方程分析 · 数学 2018-05-15 Tokinaga Namba

Building on the information-theoretic perspective of P.~D.~Lax [\textit{Proc.\ Sympos., Math.\ Res.\ Center, Univ.\ Wisconsin}, 1978], we establish a two-sided quantitative compactness estimate for numerical solutions of scalar conservation…

数值分析 · 数学 2026-05-11 Fabio Ancona , Alessio Basti , Fabio Camilli

This paper is concerned with one-dimensional 2 x 2 systems of conservation laws with a flux f=f(x, U) that is discontinuous with respect to the spatial variable. No monotonicity assumption is imposed on the mapping x \to f(x,U). We…

偏微分方程分析 · 数学 2026-03-23 Felisia Angela Chiarello , Simone Fagioli , Massimiliano Daniele Rosini

For the Burgers equation, the entropy solution becomes instantly BV with only $L^\infty$ initial data. For conservation laws with genuinely nonlinear discontinuous flux, it is well known that the BV regularity of entropy solutions is lost.…

偏微分方程分析 · 数学 2023-07-12 Shyam Sundar Ghoshal , Stephane Junca , Akash Parmar

In this paper we study the long time dynamics of the solutions to the initial-boundary value problem for a scalar conservation law with a saturating nonlinear diffusion. After discussing the existence of a unique stationary solution and its…

偏微分方程分析 · 数学 2024-05-21 Raffaele Folino , Maurizio Garrione , Marta Strani

In this work we present a nonlocal conservation law with a velocity depending on an integral term over a part of the space. The model class covers already existing models in literature, but it is also able to describe new dynamics mainly…

偏微分方程分析 · 数学 2023-04-25 Jan Friedrich , Simone Göttlich , Alexander Keimer , Lukas Pflug

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

We investigate a class of nonlocal conservation laws in several space dimensions, where the continuum average of weighted nonlocal interactions are considered over a finite horizon. We establish well-posedness for a broad class of flux…

偏微分方程分析 · 数学 2023-01-05 Mihály Kovács , Mihály A. Vághy

We study $\mathbf L^\infty$ entropy solutions to $2\times 2$ systems of conservation laws. We show that, if a uniformly convex entropy exists, these solutions satisfy a pair of kinetic equations (nonlocal in velocity), which are then shown…

偏微分方程分析 · 数学 2025-07-25 Fabio Ancona , Elio Marconi , Luca Talamini

We are concerned with spherically symmetric solutions of the Euler equations for multidimensional compressible fluids, which are motivated by many important physical situations. Various evidences indicate that spherically symmetric…

偏微分方程分析 · 数学 2015-06-11 Gui-Qiang G. Chen , Mikhail Perepelitsa

The first part of this paper introduces sufficient conditions to determine conservation laws of diffusion equations of arbitrary fractional order in time. Numerical methods that satisfy a discrete analogue of these conditions have…

数值分析 · 数学 2022-03-07 Angelamaria Cardone , Gianluca Frasca-Caccia

We study the zero-dispersion limit for a class of Korteweg--de Vries (KdV)-type initial-boundary value problems on the half-line, with Dirichlet boundary conditions assigned at \(x=0\). We focus on the outflow regime, where the solution of…

偏微分方程分析 · 数学 2026-05-26 Paolo Antonelli , Pierangelo Marcati , Laura V. Spinolo