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相关论文: Controlling conservation laws I: entropy-entropy f…

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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 introduce a stochastic traffic flow model to describe random traffic accidents on a single road. The model is a piecewise deterministic process incorporating traffic accidents and is based on a scalar conservation law with…

概率论 · 数学 2019-12-13 Simone Göttlich , Stephan Knapp

Aggregation processes with an arbitrary number of conserved quantities are investigated. On the mean-field level, an exact solution for the size distribution is obtained. The asymptotic form of this solution exhibits nontrivial ``double''…

凝聚态物理 · 物理学 2009-10-28 P. L. Krapivsky , E. Ben-Naim

We continue the development of the theory of pathwise stochastic entropy solutions for scalar conservation laws in $\R^N$ with quasilinear multiplicative ''rough path'' dependence by considering inhomogeneous fluxes and a single rough path…

偏微分方程分析 · 数学 2014-04-07 Pierre-Louis Lions , Benoit Perthame , Panagiotis E. Souganidis

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 introduce a class of one dimensional deterministic models of energy-volume conserving interfaces. Numerical simulations show that these dynamics are genuinely super-diffusive. We then modify the dynamics by adding a conservative…

统计力学 · 物理学 2015-05-28 Cédric Bernardin , Gabriel Stoltz

The existing paradox between theory and computational experiment for weak solutions of systems of conservation laws in higher space dimensions is arguably resolved. Apparently successful computations are identified with underlying…

偏微分方程分析 · 数学 2024-08-28 Michael Sever

We study a scalar integro-differential conservation law. The equation was first derived in [2] as the slow erosion limit of granular flow. Considering a set of more general erosion functions, we study the initial boundary value problem for…

偏微分方程分析 · 数学 2015-03-17 D. Amadori , W. Shen

In this paper, we develop bound-preserving (BP) finite-volume schemes for hyperbolic conservation laws on adaptive moving meshes. For scalar conservative laws, we rewrite the conventional high-order discretization as a convex combination of…

数值分析 · 数学 2026-02-16 Yaguang Gu , Guanghui Hu , Tao Tang

Exploiting a fluid dynamic formulation for which a probabilistic counterpart might not be available, we extend the theory of Schroedinger bridges to the case of inertial particles with losses and general, possibly singular diffusion…

数学物理 · 物理学 2014-10-08 Yongxin Chen , Tryphon T. Georgiou , Michele Pavon

All possible linearly independent local conservation laws for $n$-dimensional diffusion--convection equations $u_t=(A(u))_{ii}+(B^i(u))_i$ were constructed using the direct method and the composite variational principle. Application of the…

数学物理 · 物理学 2008-12-16 Nataliya M. Ivanova

In the present contribution, we investigate first-order nonlinear systems of partial differential equations which are constituted of two parts: a system of conservation laws and non-conservative first order terms. Whereas the theory of…

符号计算 · 计算机科学 2020-06-03 Pierre Cordesse , Marc Massot

We consider, in the Aw-Rascle-Zhang traffic flow model, the problem of the asymptotic stability of constant flows. By using a perturbative approach, we show the stability in a larger space of perturbation than previous results. Furthermore,…

偏微分方程分析 · 数学 2022-04-26 Tej-Eddine Ghoul , Nader Masmoudi , Eliot Pacherie

We consider compressible fluid flow on an evolving surface with a piecewise Lipschitz-continuous boundary from an energetic point of view. We employ both an energetic variational approach and the first law of thermodynamics to make a…

数学物理 · 物理学 2022-12-20 Hajime Koba

Here we consider scalar conservation law in one space dimension with strictly convex flux. Goal of this paper is to study two problems. First problem is to know the profile of the entropy solution. In spite of the fact that, this was…

偏微分方程分析 · 数学 2012-01-26 Adimurthi , Shyam Sundar Ghoshal , G. D. Veerappa Gowda

We develop a pathwise theory for scalar conservation laws with quasilinear multiplicative rough path dependence, a special case being stochastic conservation laws with quasilinear stochastic dependence. We introduce the notion of pathwise…

偏微分方程分析 · 数学 2013-09-10 Pierre-Louis Lions , Benoit Perthame , Panagiotis E. Souganidis

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

A variety of real-world applications are modeled via hyperbolic conservation laws. To account for uncertainties or insufficient measurements, random coefficients may be incorporated. These random fields may depend discontinuously on the…

数值分析 · 数学 2021-07-02 Lukas Brencher , Andrea Barth

In this letter we propose an optimization-based boundary controller for traffic flow dynamics capable of achieving both stability and invariance conditions. The approach is based on the definition of Boundary Control Barrier Functionals,…

最优化与控制 · 数学 2025-06-19 Maria Teresa Chiri , Roberto Guglielmi , Gennaro Notomista

Entropy conservation and stability of numerical methods in gas dynamics have received much interest. Entropy conservative numerical fluxes can be used as ingredients in two kinds of schemes: Firstly, as building blocks in the subcell flux…

数值分析 · 数学 2019-10-22 Hendrik Ranocha