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This paper presents a new spatial-temporal nonlocal traffic flow model formulated to overcome the boundedness limitations inherent in classical local formulations. The model introduces an adaptive kernel that captures both spatial and…

数值分析 · 数学 2026-03-30 Animesh Biswas , Archie Huang , Shaurya Agarwal , Christopher Housholder

This paper is concerned with a fluidodynamic model for traffic flow. More precisely, we consider a single conservation law, deduced from conservation of the number of cars, defined on a road network that is a collection of roads with…

偏微分方程分析 · 数学 2007-05-23 G. M. Coclite , B. Piccoli

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 present a multilane traffic model based on balance laws, where the nonlocal source term is used to describe the lane changing rate. The modelling framework includes the consideration of local and nonlocal flux functions. Based on a…

数值分析 · 数学 2022-09-08 Jan Friedrich , Simone Göttlich , Elena Rossi

We investigate the initial-value problem for the relativistic Euler equations governing isothermal perfect fluid flows, and generalize an approach introduced by LeFloch and Shelukhin in the non-relativistic setting. We establish the…

偏微分方程分析 · 数学 2007-05-23 Philippe G. LeFloch , Mitsuru Yamazaki

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…

偏微分方程分析 · 数学 2024-04-03 Ulrik S. Fjordholm , Ola H. Mæhlen , Magnus C. Ørke

In this paper we prove that the unique entropy solution to a scalar nonlinear conservation law with strictly monotone velocity and nonnegative initial condition can be rigorously obtained as the large particle limit of a microscopic…

偏微分方程分析 · 数学 2016-05-20 Marco Di Francesco , Simone Fagioli , Massimiliano D. Rosini

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

We propose a semidiscrete scheme for approximation of entropy solutions of one-dimensional scalar conservation laws with nonnegative initial data. The scheme is based on the concept of particle paths for conservation laws and can be…

偏微分方程分析 · 数学 2025-04-16 Magnus C. Ørke

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 prove global existence, uniqueness and $\L1$ stability of solutions to general systems of nonlocal conservation laws modeling multiclass vehicular traffic. Each class follows its own speed law and has specific effects on the other…

偏微分方程分析 · 数学 2025-01-29 Rinaldo M. Colombo , Mauro Garavello , Claudia Nocita

Consider a non-local (i.e., involving a convolution term) conservation law: when the convolution term converges to a Dirac delta, in the limit we formally recover a classical (or "local") conservation law. In this note we overview recent…

偏微分方程分析 · 数学 2023-11-27 Maria Colombo , Gianluca Crippa , Elio Marconi , Laura V. Spinolo

We use Velocity Averaging lemma to show that the almost everywhere limit of quasilinear viscous approximations is the unique entropy solution (in the sense of {\it F. Otto}) of the corresponding scalar conservation laws on a bounded domain…

偏微分方程分析 · 数学 2023-03-29 Ramesh Mondal

We prove the well-posedness of weak entropy solutions of a scalar non-local traffic flow model with time delay. Existence is obtained by convergence of finite volume approximate solutions constructed by Lax-Friedrich and Hilliges-Weidlich…

偏微分方程分析 · 数学 2024-04-17 Ilaria Ciaramaglia , Paola Goatin , Gabriella Puppo

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

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…

流体动力学 · 物理学 2015-05-13 Stephen C. Anco , Amanullah Dar

We are concerned with global weak solutions to the isentropic compressible Euler equations with cylindrically symmetric rotating structure, in which the origin is included. Due to the presence of the singularity at the origin, only the case…

偏微分方程分析 · 数学 2020-06-03 Difan Yuan

We consider an initial-boundary value problem for a class of nonlocal thin film equations governed by the spectral fractional Laplacian with homogeneous Neumann boundary conditions. We were the first to establish an $\alpha$-entropy…

偏微分方程分析 · 数学 2026-01-28 Antonio Segatti , Roman Taranets

We give an answer to a question posed in [P. Amorim, R. Colombo, and A. Teixeira, ESAIM Math. Model. Numerics. Anal. 2015], which can be loosely speaking formulated as follows. Consider a family of continuity equations where the velocity…

偏微分方程分析 · 数学 2019-03-14 Maria Colombo , Gianluca Crippa , Laura V. Spinolo

In this paper we investigate numerically the model for pedestrian traffic proposed in [B.Andreianov, C.Donadello, M.D.Rosini, Crowd dynamics and conservation laws with nonlocal constraints and capacity drop, Mathematical Models and Methods…