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We consider a scalar conservation law with a spatially discontinuous flux at a single point $x=0$, and we study the initial data identification problem for $AB$-entropy solutions associated to an interface connection $(A,B)$. This problem…

偏微分方程分析 · 数学 2024-08-20 Fabio Ancona , Luca Talamini

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

In this paper, we discuss the total variation bound for the solution of scalar conservation laws with discontinuous flux. We prove the smoothing effect of the equation forcing the $BV_{loc}$ solution near the interface for $L^\infty$…

偏微分方程分析 · 数学 2016-03-07 Shyam Sundar Ghoshal

We consider the initial boundary value problem (IBVP) for a non-local scalar conservation laws in one space dimension. The non-local operator in the flux function is not a mere convolution product, but it is assumed to be aware of…

偏微分方程分析 · 数学 2018-11-26 Paola Goatin , Elena Rossi

The initial boundary value problem for a class of scalar non autonomous conservation laws in one space dimension is proved to be well posed and stable with respect to variations in the flux. Targeting applications to traffic, the regularity…

偏微分方程分析 · 数学 2018-03-14 Rinaldo M. Colombo , Elena Rossi

This paper describes the reachable set and resolves an optimal control problem for the scalar conservation laws with discontinuous flux. We give a necessary and sufficient criteria for the reachable set. A new backward resolution has been…

偏微分方程分析 · 数学 2020-09-29 Adimurthi , Shyam Sundar Ghoshal

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 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

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 prove the stability with respect to the flux of solutions to initial-boundary value problems for scalar non-autonomous conservation laws in one space dimension. Key estimates are obtained through a careful construction of the solutions.

偏微分方程分析 · 数学 2019-06-12 Rinaldo M. Colombo , Elena Rossi

In this article, we consider scalar conservation laws with fluxes having spatial discontinuities and possible flat regions and study the following three aspects: (i) existence, (ii) uniqueness and (iii) BV regularity of solutions. We…

偏微分方程分析 · 数学 2020-10-27 Shyam Sundar Ghoshal , John D. Towers , Ganesh Vaidya

We focus on entropy admissible solutions of scalar conservation laws in one space dimension and establish new regularity results with respect to time. First, we assume that the flux function $f$ is strictly convex and show that, for every $…

偏微分方程分析 · 数学 2021-07-15 Simone Dovetta , Elio Marconi , Laura V. Spinolo

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

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 study the BGK approximation to first-order scalar conservation laws with a flux which is discontinuous in the space variable. We show that the Cauchy Problem for the BGK approximation is well-posed and that, as the relaxation parameter…

偏微分方程分析 · 数学 2010-04-01 Florent Berthelin , Julien Vovelle

In this paper we establish well-posedness for scalar conservation laws on closed manifolds M endowed with a constant or a time-dependent Riemannian metric for initial values in L^\infty(M). In particular we show the existence and uniqueness…

偏微分方程分析 · 数学 2014-02-04 Daniel Lengeler , Thomas Müller

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

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 establish a general nonlocal approximation principle for the entropy solutions of scalar conservation laws on $\mathbb{R}$. More precisely, we show that the entropy solution to a nonnegative initial datum can be obtained as a weak-star…

偏微分方程分析 · 数学 2026-05-04 Alexander Keimer , Lukas Pflug

Building on the information-theoretic perspective of P.~D.~Lax [\textit{Proc.\ Sympos., Math.\ Res.\ Center, Univ.\ Wisconsin}, 1978], we establish a two-sided quantitative compactness estimate for numerical solutions of scalar conservation…

数值分析 · 数学 2026-05-11 Fabio Ancona , Alessio Basti , Fabio Camilli
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