arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.03882math.APcs.NAmath.NA
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Hunter-Saxton方程的数值守恒解

Numerical conservative solutions of the Hunter--Saxton equation

Katrin Grunert, Anders Nordli, Susanne Solem

摘要:

本文导出了Hunter-Saxton方程守恒解的一种收敛的数值方法。该方法是基于分段线性投影,然后沿特征演变,其中选择时间步长以防止波浪破碎。当时间步长与空间步长的平方根成正比时,收敛性得到了证明,这比守恒律的CFL条件要温和。

英文摘要:

In the article a convergent numerical method for conservative solutions of the Hunter--Saxton equation is derived. The method is based on piecewise linear projections, followed by evolution along characteristics where the time step is chosen in order to prevent wave breaking. Convergence is obtained when the time step is proportional to the square root of the spatial step size, which is a milder restriction than the common CFL condition for conservation laws.

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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