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arXiv 2008.05227math.NAcs.NA
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非相对论极限下Klein-Gordon型半线性波方程的高阶一致精确时间积分器

High-order uniformly accurate time integrators for semilinear wave equations of Klein-Gordon type in the non-relativistic limit

Haidar Mohamad, Marcel Oliver

AI总结:

针对非相对论极限下Klein-Gordon型半线性波方程,提出了一族无需特定预计算且步长无限制的高阶时间半离散化方法,其一致精确性依赖于一般振荡求积规则。

摘要:

我们针对Klein-Gordon型半线性波方程(具有任意平滑非线性项),提出了一族高阶时间半离散化方法。在光速趋于无穷的非相对论极限下,这些方法具有一致精确性。我们的格式无需针对非线性项进行特定预计算,且对步长无限制。相反,它们依赖于先前论文(Mohamad和Oliver,arXiv:1909.04616)中开发的一般振荡求积规则。

英文摘要:

We introduce a family of high-order time semi-discretizations for semilinear wave equations of Klein--Gordon type with arbitrary smooth nonlinerities that are uniformly accurate in the non-relativistic limit where the speed of light goes to infinity. Our schemes do not require pre-computations that are specific to the nonlinearity and have no restrictions in step size. Instead, they rely upon a general oscillatory quadrature rule developed in a previous paper (Mohamad and Oliver, arXiv:1909.04616).

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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