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The scaling of the exact solution of a hyperbolic balance law generates a family of scaled problems in which the source term does not depend on the current solution. These problems are used to construct a sequence of solutions whose…

数值分析 · 数学 2020-07-21 Gino I. Montecinos

We study nonlinear hyperbolic conservation laws posed on a differential (n+1)-manifold with boundary referred to as a spacetime, and defined from a prescribed flux field of n-forms depending on a parameter (the unknown variable), a class of…

偏微分方程分析 · 数学 2020-01-14 Jan Giesselmann , Philippe G. LeFloch

We propose a new sufficient non-degeneracy condition for the strong precompactness of bounded sequences satisfying the nonlinear first-order differential constraints. This result is applied to establish the decay property for periodic…

偏微分方程分析 · 数学 2015-04-06 Evgeny Yu. Panov

We consider two physically and mathematically distinct regularization mechanisms of scalar hyperbolic conservation laws. When the flux is convex, the combination of diffusion and dispersion are known to give rise to monotonic and…

斑图形成与孤子 · 物理学 2017-03-14 G. A. El , M. A. Hoefer , M. Shearer

In this paper we present a novel framework for obtaining high-order numerical methods for scalar conservation laws in one-space dimension for both the homogeneous and non-homogeneous case. The numerical schemes for these two settings are…

数值分析 · 数学 2019-10-31 Geoffrey McGregor , Jean-Christophe Nave

The notions of generating sets of conservation laws of systems of differential equations with respect to symmetry groups and equivalence groups are introduced and applied. This allows us to generalize essentially the procedure of finding…

数学物理 · 物理学 2007-10-17 N. M. Ivanova , R. O. Popovych , C. Sophocleous

We prove the stability of entropy weak solutions of a class of scalar conservation laws with non-local flux arising in traffic modelling. We obtain an estimate of the dependence of the solution with respect to the kernel function, the speed…

偏微分方程分析 · 数学 2018-01-18 Felisia Angela Chiarello , Paola Goatin , Elena Rossi

We establish the global existence and uniqueness of $L^1$-solutions to the Cauchy problem for time-fractional porous medium type nonlinear diffusion equations. Furthermore, we give the mass conservation law for $L^1$-solutions to…

偏微分方程分析 · 数学 2026-05-20 Mikiya Kametaka , Tatsuki Kawakami

We discuss solutions of the one dimensional scalar conservation law with the flux function $y\longmapsto G_{c,\rho}\left(y\right)=((1-\rho)c-y)\mathbb{1}_{\{y>c\}}-\rho y\mathbb{1}_{\{y\leqslant c\}}$ for two specific initial conditions…

偏微分方程分析 · 数学 2026-04-03 Brice Franke , Majid Lagnaoui , Catherine Rainer

We found the precise condition for the decay as $t\to\infty$ of Besicovitch almost periodic entropy solutions of multidimensional scalar conservation laws. Moreover, in the case of one space variable we establish asymptotic convergence of…

偏微分方程分析 · 数学 2017-01-10 Evgeny Yu. Panov

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

We propose a mathematical framework to the study of scalar conservation laws with moving interfaces. This framework is developed on a LWR model with constraint on the flux along these moving interfaces. Existence is proved by means of a…

偏微分方程分析 · 数学 2024-05-07 Abraham Sylla

We consider the initial boundary value problem (IBVP) for a non-local scalar conservation laws in one space dimension. The non-local operator in the flux function is not a mere convolution product, but it is assumed to be aware of…

偏微分方程分析 · 数学 2018-11-26 Paola Goatin , Elena Rossi

We consider a genuinely nonlinear $1$-d system of hyperbolic conservation laws with two unknowns. A famous construction of Glimm & Lax shows that global-in-time "Glimm-Lax" weak entropy solutions exist in this setting for any initial data…

偏微分方程分析 · 数学 2026-01-06 Jeffrey Cheng , Cooper Faile , Sam G. Krupa

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

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

This article investigates the long-time behaviour of parabolic scalar conservation laws of the type $\partial_t u + \mathrm{div}_yA(y,u) - \Delta_y u=0$, where $y\in\mathbb R^N$ and the flux $A$ is periodic in $y$. More specifically, we…

偏微分方程分析 · 数学 2012-07-03 Anne-Laure Dalibard

We establish a general nonlocal approximation principle for the entropy solutions of scalar conservation laws on $\mathbb{R}$. More precisely, we show that the entropy solution to a nonnegative initial datum can be obtained as a weak-star…

偏微分方程分析 · 数学 2026-05-04 Alexander Keimer , Lukas Pflug

The commonly applied self-similar solution of the problem of the converging shock wave (shock) evolution with constant compression of the medium behind the shock front results in an unlimited increase of the medium velocity in the vicinity…

流体动力学 · 物理学 2022-02-15 Sergey G. Chefranov , Yakov E. Krasik , Alexander Rososhek

We prove existence and uniqueness for a class of signed Radon measure-valued entropy solutions of the Cauchy problem for a first order scalar hyperbolic conservation law in one space dimension. The initial data of the problem is a finite…

偏微分方程分析 · 数学 2019-07-25 M. Bertsch , F. Smarrazzo , A. Terracina , A. Tesei