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We study compactness properties of time-discrete and continuous time BGK-type schemes for scalar conservation laws, in which microscopic interactions occur only when the state of a system deviates significantly from an equilibrium…

偏微分方程分析 · 数学 2016-08-01 Misha Perepelitsa

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…

偏微分方程分析 · 数学 2014-06-20 Evgeny Yu. Panov

We study the Cauchy problem for a multidimensional scalar conservation law on the Bohr compactification of $\R^n$. The existence and uniqueness of entropy solutions are established in the general case of merely continuous flux vector. We…

偏微分方程分析 · 数学 2014-08-05 Evgeny Yu. Panov

We deal with the Cauchy problem for multi-dimensional scalar conservation laws, where the fluxes and the source terms can be discontinuous functions of the unknown. The main novelty of the paper is the introduction of a~kinetic formulation…

偏微分方程分析 · 数学 2016-06-22 Miroslav Bulíček , Piotr Gwiazda , Agnieszka Świerczewska-Gwiazda

This paper deals with the derivation of entropy solutions to Cauchy problems for a class of scalar conservation laws with space-density depending fluxes from systems of deterministic particles of follow-the-leader type. We consider fluxes…

偏微分方程分析 · 数学 2019-05-24 Marco Di Francesco , Graziano Stivaletta

Solutions to a class of conservation laws with discontinuous flux are constructed relying on the Crandall-Liggett theory of nonlinear contractive semigroups~\cite{CL}. In particular, the paper studies the existence of backward Euler…

偏微分方程分析 · 数学 2019-02-28 Graziano Guerra , Wen Shen

In this work we study variational properties of approximate solutions of scalar conservation laws. Solutions of this type are described by a kinetic equation which is similar to the kinetic representation of admissible weak solutions due to…

偏微分方程分析 · 数学 2016-08-01 Misha Perepelitsa

We propose new Kruzhkov type entropy conditions for one dimensional scalar conservation law with a discontinuous flux. We prove existence and uniqueness of the entropy admissible weak solution to the corresponding Cauchy problem merely…

偏微分方程分析 · 数学 2010-11-19 Darko Mitrovic

We build a finite volume scheme for the scalar conservation law $\partial_t u + \partial_x (H(x, u)) = 0$ with bounded initial condition for a wide class of flux function $H$, convex with respect to the second variable. The main idea for…

数值分析 · 数学 2025-12-04 Abraham Sylla

In this article, we propose a novel front tracking scheme for scalar conservation laws with spatially heterogeneous, uniformly convex flux and prove that approximations converge to the unique entropy solution. The main tools are Dafermos'…

偏微分方程分析 · 数学 2025-11-04 Parasuram Venkatesh

We study a BGK-like approximation to hyperbolic conservation laws forced by a multiplicative noise. First, we make use of the stochastic characteristics method and establish the existence of a solution for any fi xed parameter…

偏微分方程分析 · 数学 2013-05-29 Martina Hofmanova

In this article, we propose a second-order central scheme of the Nessyahu-Tadmor-type for a class of scalar conservation laws with discontinuous flux and present its convergence analysis. Since solutions to problems with discontinuous flux…

数值分析 · 数学 2025-03-25 Nikhil Manoj , Sudarshan Kumar K

We find a representation of smooth solutions to the Cauchy problem for a scalar multidimensional conservation law as small diffusion limit of a stochastic perturbation along characteristics. It helps, in particular, to study the process of…

偏微分方程分析 · 数学 2012-10-11 S. Albeverio , O. Rozanova

We study the well-posedness of the Cauchy problem for scalar conservation laws with discontinuous, non-degenerate fluxes. Locally, the fluxes are piecewise smooth across interfaces described by a Heaviside-type discontinuity, with left and…

偏微分方程分析 · 数学 2025-10-02 Darko Mitrovic

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 introduce the notion of entropy solutions (e.s.) to a conservation law with an arbitrary jump continuous flux vector and prove existence of the largest and the smallest e.s. to the Cauchy problem. The monotonicity and stability…

偏微分方程分析 · 数学 2022-05-18 Evgeny Yu. Panov

Consider a scalar conservation law with discontinuous flux \begin{equation*}\tag{1} \quad u_{t}+f(x,u)_{x}=0, \qquad f(x,u)= \begin{cases} f_l(u)\ &\text{if}\ x<0,\\ f_r(u)\ & \text{if} \ x>0, \end{cases} \end{equation*} where $u=u(x,t)$ is…

偏微分方程分析 · 数学 2020-09-29 Fabio Ancona , Maria Teresa Chiri

We prove the well-posedness of entropy weak solutions for a class of space-discontinuous scalar conservation laws with non-local flux arising in traffic modeling. We approximate the problem adding a viscosity term and we provide $L^\infty$…

偏微分方程分析 · 数学 2021-05-24 Felisia Angela Chiarello , Giuseppe Maria Coclite

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 the initial value problem for a scalar conservation law in one space dimension with a single spatial flux discontinuity, the so-called two-flux problem. We prove that a well-known front tracking algorithm has a convergence rate…

偏微分方程分析 · 数学 2025-09-30 Shyam Sundar Ghoshal , John D Towers
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