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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

The focus of this work is to create benchmark simulations of decay rates to statistical equilibrium in transport plasma models for Coulomb particle interactions given by a coupled Vlasov-Poisson Fokker-Planck-Landau equation, as well as…

统计力学 · 物理学 2020-09-24 Clark A. Pennie , Irene M. Gamba

This paper investigates the following Keller-Segel-Navier-Stokes system with nonlinear diffusion and rotational flux $$\begin{align}\begin{cases} &n_t+u\cdot\nabla n=\Delta n^m-\nabla\cdot(nS(x, n, c)\nabla c),\quad &x\in \Omega, t>0, \\…

偏微分方程分析 · 数学 2019-03-19 Yuanyuan Ke , Jiashan Zheng

We study a model of a general compressible viscous fluid subject to the Coulomb friction law boundary condition. For this model, we introduce a dissipative formulation and prove the existence of dissipative solutions. The proof of this…

偏微分方程分析 · 数学 2024-02-22 Sarka Necasova , Justyna Ogorzaly , Jan Scherz

A combined incompressible and vanishing capillarity limit in the barotropic compressible Navier-Stokes equations for smooth solutions is proved. The equations are considered on the two-dimensional torus with well prepared initial data. The…

偏微分方程分析 · 数学 2015-06-12 A. Jüngel , C. -K. Lin , K. -C. Wu

We prove regularity estimates for entropy solutions to scalar conservation laws with a force. Based on the kinetic form of a scalar conservation law, a new decomposition of entropy solutions is introduced, by means of a decomposition in the…

偏微分方程分析 · 数学 2017-07-24 Benjamin Gess , Xavier Lamy

The classical continuum mechanical model of granular media of rational thermodynamics results in a Coulomb-Mohr type equilibrium stress-strain relation. The proof is based on a two component material model introducing a scalar internal…

凝聚态物理 · 物理学 2007-05-23 P. Van

We prove that a class of monotone finite volume schemes for scalar conservation laws with discontinuous flux converge at a rate of $\sqrt{\Delta x}$ in $\mathrm{L}^1$, whenever the flux is strictly monotone in $u$ and the spatial dependency…

数值分析 · 数学 2020-02-10 Jayesh Badwaik , Adrian Montgomery Ruf

We consider a conservation law model of traffic flow, where the velocity of each car depends on a weighted average of the traffic density $\rho$ ahead. The averaging kernel is of exponential type: $w_\varepsilon(s)=\varepsilon^{-1}…

偏微分方程分析 · 数学 2020-11-12 Alberto Bressan , Wen Shen

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…

偏微分方程分析 · 数学 2011-07-28 Simone Cifani , Espen R. Jakobsen

In this paper we study the finite time emergence of one shock for the solution of scalar conservation laws in one space dimension with general flux f . We give a necessary and sufficient condition to the initial data connecting to flux. The…

偏微分方程分析 · 数学 2018-07-31 Adimurthi , Shyam Sundar Ghoshal

We investigate a class of nonlocal conservation laws with the nonlinear advection coupling both local and nonlocal mechanism, which arises in several applications such as the collective motion of cells and traffic flows. It is proved that…

偏微分方程分析 · 数学 2013-04-08 Yongki Lee , Hailiang Liu

We revisit a classical continuum model for the diffusion of multiple species with size-exclusion constraint, which leads to a degenerate nonlinear cross-diffusion system. The purpose of this article is twofold: first, it aims at a…

偏微分方程分析 · 数学 2022-08-04 Katharina Hopf , Martin Burger

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

We consider a class of nonlocal conservation laws with an interaction kernel supported on the negative real half-line and featuring a decreasing jump at the origin. We provide, for the first time, an existence and uniqueness theory for said…

偏微分方程分析 · 数学 2024-06-07 M. Di Francesco , S. Fagioli , E. Radici

We present in this communication a new solving procedure for Kelvin&Kirchhoff equations, considering the dynamics of falling the rigid rotating torus in an ideal incompressible fluid, assuming additionally the dynamical symmetry of rotation…

综合物理 · 物理学 2021-05-24 Sergey Ershkov , Dmytro Leshchenko , Ayrat Giniyatullin

The aim of this article is to study the limiting behavior of the solutions for the scaled generalized Euler equations of compressible fluid flow. When the initial data is of Riemann type, we showed the existence of solution which consists…

偏微分方程分析 · 数学 2019-07-17 Manas Ranjan Sahoo , Abhrojyoti Sen

We consider the scalar conservation law in one space dimension with a genuinely nonlinear flux. We assume that an appropriate velocity function depending on the entropy solution of the conservation law is given for the comprising particles,…

偏微分方程分析 · 数学 2023-07-28 Masoumeh Dashti , Duc-Lam Duong

We study the limiting behavior of the solutions to a class of conservation laws with vanishing nonlinear diffusion and dispersion terms. We prove the convergence to the entropy solution of the first order problem under a condition on the…

偏微分方程分析 · 数学 2007-11-06 Philippe G. LeFloch , Roberto Natalini

We study a model for a fluid showing viscoelastic and viscoplastic behavior, which describes the flow in terms of the fluid velocity and an internal stress. This stress tensor is transported via the Zaremba--Jaumann rate, and it is subject…

偏微分方程分析 · 数学 2023-12-22 Thomas Eiter , Katharina Hopf , Robert Lasarzik