论文标题

非相关性极限中klein-gordon类型的半线性波方程的高阶准确时间积分器

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

论文作者

Mohamad, Haidar, Oliver, Marcel

论文摘要

我们介绍了一个高阶时间半差异的家族,用于klein类型的半线性波方程,具有任意平滑的非线值,在非相关限制中均匀准确,而光的速度转到无限。我们的计划不需要特定于非线性的预计,并且没有步骤大小的限制。取而代之的是,他们依赖于上一篇论文中制定的一般振荡正交规则(Mohamad和Oliver,Arxiv:1909.04616)。

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).

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