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The entropy based flux-limiting (EFL) scheme is a novel approach designed to accurately resolve shocks and discontinuities in special and general relativistic hydrodynamics. By adaptively adjusting the numerical fluxes, the EFL method…

General Relativity and Quantum Cosmology · Physics 2024-12-20 Georgios Doulis , Sebastiano Bernuzzi , Wolfgang Tichy

For the Euler equations governing compressible isentropic fluid flow with a barotropic equation of state (where pressure is a function only of the density), local conservation laws in $n>1$ spatial dimensions are fully classified in two…

Fluid Dynamics · Physics 2015-05-13 Stephen C. Anco , Amanullah Dar

Nonlinear scalar conservation laws are traditionally viewed as transport equations. We take instead the viewpoint of these PDEs as continuity equations with an implicitly defined velocity field. We show that a weak solution is the entropy…

Analysis of PDEs · Mathematics 2024-04-03 Ulrik S. Fjordholm , Ola H. Mæhlen , Magnus C. Ørke

The paper is concerned with the boundary controllability of entropy weak solutions to hyperbolic systems of conservation laws. We prove a general result on the asymptotic stabilization of a system near a constant state. On the other hand,…

Optimization and Control · Mathematics 2007-05-23 Alberto Bressan , Giuseppe Maria Coclite

We present a new approach to analyze the validation of weakly nonlinear geometric optics for entropy solutions of nonlinear hyperbolic systems of conservation laws whose eigenvalues are allowed to have constant multiplicity and…

Analysis of PDEs · Mathematics 2012-12-27 Gui-Qiang Chen , Wei Xiang , Yongqian Zhang

We study a class of degenerate convection diffusion equations with a fractional nonlinear diffusion term. These equations are natural generalizations of anomalous diffusion equations, fractional conservations laws, local convection…

Analysis of PDEs · Mathematics 2011-07-28 Simone Cifani , Espen R. Jakobsen

We consider the fully non-local diffusion equations with non-negative $L^1$-data. Based on the approximation and energy methods, we prove the existence and uniqueness of non-negative entropy solutions for such problems. In particular, our…

Analysis of PDEs · Mathematics 2023-11-02 Ying Li , Chao Zhang

The explicit formulation of the general inverse problem on conservation laws is presented for the first time. In this problem one aims to derive the general form of systems of differential equations that admit a prescribed set of…

Mathematical Physics · Physics 2019-12-04 Roman O. Popovych , Alexander Bihlo

The main goal of the paper is to define and use a condition sufficient to choose a unique solution to conservation law systems with a singular measure in initial data. Different approximations can lead to solutions with different…

Analysis of PDEs · Mathematics 2020-11-10 Marko Nedeljkov , Sanja Ružičić

We consider a class of nonlocal conservation laws modeling traffic flow, given by $ \partial_t u_\varepsilon + \partial_x(V(u_\varepsilon \ast \gamma_\varepsilon)\, u_\varepsilon) = 0 $ with $ \gamma_\varepsilon(\cdot) :=…

Analysis of PDEs · Mathematics 2025-12-09 Nicola De Nitti , Kuang Huang

We introduce a dispersion approximation of weak, entropy solutions of multidimensional scalar conservation laws using variational kinetic representation, where equilibrium densities satisfy the Gibb's entropy minimization principle for a…

Analysis of PDEs · Mathematics 2020-08-31 Misha Perepelitsa

This work is devoted to examine the uniqueness and existence of kinetic solutions for a class of scalar conservation laws involving a nonlocal super-critical diffusion operator and a multiplicative noise. Our proof for uniqueness is based…

Analysis of PDEs · Mathematics 2017-02-23 Lv Guangying , Gao Hongjun , Wei Jinlong

We study the long-time behavior and the regularity of pathwise entropy solutions to stochastic scalar conservation laws with random in time spatially homogeneous fluxes and periodic initial data. We prove that the solutions converge to…

Analysis of PDEs · Mathematics 2016-03-30 Benjamin Gess , Panagiotis E. Souganidis

This article is an attempt to complement some recent developments on conservation laws with stochastic forcing. In a pioneering development, Feng $&$ Nualarthave developed the entropy solution theory for such problems and the presence of…

Analysis of PDEs · Mathematics 2014-08-28 Imran H. Biswas , Ananta K. Majee

This paper develops a concise procedure for the study on local behavior of solutions to anisotropically weighted quasi-linear singular parabolic equations of $p$-Laplacian type, which is realized by improving the energy inequalities and…

Analysis of PDEs · Mathematics 2024-06-05 Changxing Miao , Zhiwen Zhao

For hyperbolic systems of conservation laws, uniqueness of solutions is still largely open. We aim to expand the theory of uniqueness for systems of conservation laws. One difficulty is that many systems have only one entropy. This…

Analysis of PDEs · Mathematics 2019-11-28 Sam G. Krupa , Alexis F. Vasseur

We study the Cauchy problem for a multidimensional scalar conservation law with merely continuous flux vector in the class of Besicovitch almost periodic functions. The existence and uniqueness of entropy solutions are established. We…

Analysis of PDEs · Mathematics 2014-06-20 Evgeny Yu. Panov

A Lagrangian formulation with nonlocality is investigated in this paper. The nonlocality of the Lagrangian is introduced by a new nonlocal argument that is defined as a nonlocal residual satisfying the zero mean condition. The nonlocal…

Mathematical Physics · Physics 2012-09-20 Zaixing Huang

We investigate extreme value theory for physical systems with a global conservation law which describe renewal processes, mass transport models and long-range interacting spin models. As shown previously, a special feature is that the…

Statistical Mechanics · Physics 2020-11-04 Marc Höll , Wanli Wang , Eli Barkai

Considering the isentropic Euler equations of compressible fluid dynamics with geometric effects included, we establish the existence of entropy solutions for a large class of initial data. We cover fluid flows in a nozzle or in spherical…

Analysis of PDEs · Mathematics 2008-12-16 Philippe G. LeFloch , Michael Westdickenberg