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arXiv 1502.07158math.AP
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结点上Hamilton-Jacobi方程的finite difference格式的误差估计

Error estimates for finite difference schemes associated with Hamilton-Jacobi equations on a junction

Jessica Guerand, Marwa Koumaiha

摘要:

本文研究了一阶Hamilton Jacobi方程的单调(时间显式)有限差分格式。他们将Costesece,Lebacque和Monneau(2013)最近引入的方案扩展到一般结条件。一方面,我们证明了当网格步长趋于零时,对于一般的结条件,数值解收敛于Hamilton-Jacobi方程的黏性解。另一方面,我们导出了在最优控制型结条件下,至少当通量是“严格限制”时,在$L\_{loc}^{\infty}$中的阶$($ Δ $x)^{\frac{1}{2}}$的最优误差估计。

英文摘要:

This paper is concerned with monotone (time-explicit) finite difference schemes associated with first order Hamilton-Jacobi equations posed on a junction. They extend the schemes recently introduced by Costeseque, Lebacque and Monneau (2013) to general junction conditions. On the one hand, we prove the convergence of the numerical solution towards the viscosity solution of the Hamilton-Jacobi equation as the mesh size tends to zero for general junction conditions. On the other hand, we derive optimal error estimates of order $($Δ$x)^{\frac{1}{2}}$ in $L\_{loc}^{\infty}$ for junction conditions of optimal-control type at least if the flux is "strictly limited".

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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