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We prove the existence of BV solutions for $2\times 2$ system of hyperbolic balance laws in one space dimension. The flux is assumed to have two genuinely nonlinear characteristic fields. We consider a general force which may possibly…

偏微分方程分析 · 数学 2024-08-05 Boris Haspot , Animesh Jana

We consider solutions of two-dimensional $m \times m$ systems hyperbolic conservation laws that are constant in time and along rays starting at the origin. The solutions are assumed to be small $L^\infty$ perturbations of a constant state…

偏微分方程分析 · 数学 2013-05-07 Volker Elling , Joseph Roberts

In this article, we investigate the BV stability of $2\times 2$ hyperbolic systems of conservation laws with strictly positive velocities under dissipative boundary conditions. More precisely, we derive sufficient conditions guaranteeing…

偏微分方程分析 · 数学 2015-12-17 Jean-Michel Coron , Sylvain Ervedoza , Shyam Ghoshal , Olivier Glass , Vincent Perrollaz

We consider $\mathbf L^\infty$ solutions to $2\times 2$ systems of conservation laws. For genuinely nonlinear systems we prove that finite entropy solutions (in particular entropy solutions, if a uniformly convex entropy exists) belong to…

偏微分方程分析 · 数学 2025-07-25 Luca Talamini

We consider nxn hyperbolic systems of balance laws in one-space dimension under the assumption that all negative (resp. positive) characteristics are linearly degenerate. We prove the local exact one-sided boundary null controllability of…

偏微分方程分析 · 数学 2017-12-14 Tatsien Li , Lei Yu

We consider a p-system of conservation laws that emerges in one dimensional elasticity theory. Such system is determined by a function $W$, called strain-energy function. We consider four forms of $W$ which are known in the literature.…

偏微分方程分析 · 数学 2016-02-02 Edgardo Pérez , Krzysztof Rózga

Aim of this paper is to review some basic ideas and recent developments in the theory of strictly hyperbolic systems of conservation laws in one space dimension. The main focus will be on the uniqueness and stability of entropy weak…

偏微分方程分析 · 数学 2007-05-23 Alberto Bressan

High-order accurate, $\textit{entropy stable}$ numerical methods for hyperbolic conservation laws have attracted much interest over the last decade, but only a few rigorous convergence results are available, particularly in multiple space…

数值分析 · 数学 2019-06-13 Neelabja Chatterjee , Ulrik Skre Fjordholm

For a genuinely nonlinear $2\times 2$ hyperbolic system of conservation laws, assuming that the initial data have small ${\bf L}^\infty$ norm but possibly unbounded total variation, the existence of global solutions was proved in a…

偏微分方程分析 · 数学 2025-05-06 Alberto Bressan , Elio Marconi , Ganesh Vaidya

We seek to define statistical solutions of hyperbolic systems of conservation laws as time-parametrized probability measures on $p$-integrable functions. To do so, we prove the equivalence between probability measures on $L^p$ spaces and…

偏微分方程分析 · 数学 2018-08-02 Ulrik Skre Fjordholm , Samuel Lanthaler , Siddhartha Mishra

We prove the existence of a weak solution to a two-dimensional resonant 3x3 system of conservation laws with BV initial data. Due to possible resonance (coinciding eigenvalues), spatial BV estimates are in general not available. Instead, we…

偏微分方程分析 · 数学 2007-05-23 Kenneth H. Karlsen , Michel Rascle , Eitan Tadmor

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

The class of $2\times 2$ nonlinear hyperbolic systems with one genuinely nonlinear field and one linearly degenerate field are considered. Existence of global weak solutions for small initial data in fractional BV spaces $BV^s$ is proved.…

偏微分方程分析 · 数学 2020-04-07 Boris Haspot , Stéphane Junca

Consider a strictly hyperbolic $n\times n$ system of conservation laws, where each characteristic field is either genuinely nonlinear or linearly degenerate. In this standard setting, it is well known that there exists a Lipschitz semigroup…

偏微分方程分析 · 数学 2023-05-19 Alberto Bressan , Graziano Guerra

In this paper, we show that a geometrical condition on $2\times2$ systems of conservation laws leads to non-uniqueness in the class of 1D continuous functions. This demonstrates that the Liu Entropy Condition alone is insufficient to…

偏微分方程分析 · 数学 2024-07-04 Robin Ming Chen , Alexis F. Vasseur , Cheng Yu

The existing paradox between theory and computational experiment for weak solutions of systems of conservation laws in higher space dimensions is arguably resolved. Apparently successful computations are identified with underlying…

偏微分方程分析 · 数学 2024-08-28 Michael Sever

We introduce a formulation of the initial and boundary value problem for nonlinear hyperbolic conservation laws posed on a differential manifold endowed with a volume form, possibly with a boundary; in particular, this includes the…

偏微分方程分析 · 数学 2008-08-22 Philippe G. LeFloch , Baver Okutmustur

For hyperbolic systems of conservation laws in one space dimension with a mathematical entropy, we define the notion of entropy velocity. Then we give sufficient conditions for such a system to be covariant under the action of a group of…

偏微分方程分析 · 数学 2022-03-29 François Dubois

This paper deals with some qualitative properties of entropy solutions to hyperbolic conservation laws. In [11] the jump set of entropy solution to conservation laws has been introduced. We find an entropy solution to scalar conservation…

偏微分方程分析 · 数学 2019-06-07 Shyam Sundar Ghoshal , Animesh Jana

We study the following class of scalar hyperbolic conservation laws with discontinuous fluxes: \partial_t\rho+\partial_xF(x,\rho)=0. The main feature of such a conservation law is the discontinuity of the flux function in the space variable…

偏微分方程分析 · 数学 2007-10-02 Gui-Qiang Chen , Nadine Even , Christian Klingenberg
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