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For the $1$-d isothermal Euler system, we consider the family of entropic BV solutions with possibly large, but finite, total variation. We show that these solutions are stable with respect to large perturbations in a class of weak…

偏微分方程分析 · 数学 2025-09-03 Jeffrey Cheng

For hyperbolic systems of conservation laws, including important physical models from continuum mechanics, the question of stability for large data solutions remains a challenging open problem. In recent work (arXiv:2507.23645) the authors…

偏微分方程分析 · 数学 2025-09-23 Geng Chen , Cooper Faile , Sam G. Krupa

In this paper on hyperbolic systems of conservation laws in one space dimension, we give a complete picture of stability for all solutions to the Riemann problem which contain only extremal shocks. We study stability of the Riemann problem…

偏微分方程分析 · 数学 2021-03-02 Sam G. Krupa

Let a 1-d system of hyperbolic conservation laws, with two unknowns, be endowed with a convex entropy. We consider the family of small $BV$ functions which are global solutions of this equation. For any small $BV$ initial data, such global…

偏微分方程分析 · 数学 2022-11-07 Geng Chen , Sam G. Krupa , Alexis F. Vasseur

We show uniqueness and stability in $L^2$ and for all time for piecewise-smooth solutions to hyperbolic balance laws. We have in mind applications to gas dynamics, the isentropic Euler system and the full Euler system for a polytropic gas…

偏微分方程分析 · 数学 2020-11-26 Sam G. Krupa

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

In this paper, we develop reliable a posteriori error estimates for numerical approximations of scalar hyperbolic conservation laws in one space dimension. Our methods have no inherent small-data limitations and are a step towards error…

偏微分方程分析 · 数学 2025-10-07 Jan Giesselmann , Sam G. Krupa

We prove $L^2$ stability estimates for entropic shocks among weak, possibly \emph{non-entropic}, solutions of scalar conservation laws $\partial_t u+\partial_x f(u)=0$ with strictly convex flux function $f$. This generalizes previous…

偏微分方程分析 · 数学 2021-04-07 Andres A. Contreras Hip , Xavier Lamy

We consider the p-system in Eulerian coordinates on a star-shaped network. Under suitable transmission conditions at the junction and dissipative boundary conditions in the exterior vertices, we show that the entropy solutions of the system…

偏微分方程分析 · 数学 2024-08-01 Giuseppe Maria Coclite , Nicola De Nitti , Mauro Garavello , Francesca Marcellini

In this paper, we study stability properties of solutions to scalar conservation laws with a class of non-convex fluxes. Using the theory of $a$-contraction with shifts, we show $L^2$-stability for shocks among a class of large…

偏微分方程分析 · 数学 2025-09-03 Jeffrey Cheng

Consider the hyperbolic nonlinear Schr\"odinger equation (HNLS) over $\mathbb{R}^d$ $$ iu_t + u_{xx} - \Delta_{\textbf{y}} u + \lambda |u|^\sigma u=0. $$ We deduce the conservation laws associated with (HNLS) and observe the lack of…

偏微分方程分析 · 数学 2016-12-01 Simão Correia , Mário Figueira

We consider the local well-posedness of the one-dimensional nonisentropic Euler equations with moving physical vacuum boundary condition. The physical vacuum singularity requires the sound speed to be scaled as the square root of the…

偏微分方程分析 · 数学 2019-05-29 Yongcai Geng , Yachun Li , Dehua Wang , Runzhang Xu

We introduce stabilized spline collocation schemes for the numerical solution of nonlinear, hyperbolic conservation laws. A nonlinear, residual-based viscosity stabilization is combined with a projection stabilization-inspired linear…

数值分析 · 数学 2023-07-18 Ryan M. Aronson , John A. Evans

We develop a theory based on relative entropy to show the uniqueness and L^2 stability (up to a translation) of extremal entropic Rankine-Hugoniot discontinuities for systems of conservation laws (typically 1-shocks, n-shocks, 1-contact…

偏微分方程分析 · 数学 2015-05-19 Nicholas Leger , Alexis Vasseur

It is well known, thanks to Lax-Wendroff theorem, that the local conservation of a numerical scheme for a conservative hyperbolic system is a simple and systematic way to guarantee that, if stable, a scheme will provide a sequence of…

数值分析 · 数学 2023-01-16 Remi Abgrall , P Bacigaluppi , S Tokareva

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

We consider the following parabolic approximation for hyperbolic system of conservation laws in 1-D with non-singular viscosity matrix $B(u)$ and $A(u)$ strictly hyperbolic,…

偏微分方程分析 · 数学 2026-05-29 Boris Haspot , Animesh Jana

We study BV solutions for a $2\times2$ system of hyperbolic balance laws. We show that when initial data have small total variation on $(-\infty,\infty)$ and small amplitude, and decay sufficiently fast to a constant equilibrium state as…

偏微分方程分析 · 数学 2023-09-07 Geng Chen , Yanni Zeng

Onsager's conjecture, which relates the conservation of energy to the regularity of weak solutions of the Euler equations, was completely resolved in recent years. In this work, we pursue an analogue of Onsager's conjecture in the context…

偏微分方程分析 · 数学 2023-08-29 Daniel W. Boutros , Simon Markfelder , Edriss S. Titi

The global well-posedness and stability of solutions to the three-dimensional compressible Euler equations with damping is a longstanding open problem. This problem was addressed in \cite{WY, STW} in the isentropic regime (i.e. $\gamma>1$)…

偏微分方程分析 · 数学 2025-02-19 Feimin Huang , Houzhi Tang , Shuxing Zhang , Weiyuan Zou
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