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arXiv 1006.2269math.NAcs.DScs.NA
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关于良好分离集和快速多极子方法

On well-separated sets and fast multipole methods

Stefan Engblom

摘要:

良好的分离集的概念在快速多极方法中是至关重要的,因为其主要思想是通过聚类展开来近似这些集之间的相互作用。我们重新审视的一个参数的多极验收标准,在一般设置,并得出一个相对误差估计。这种分析有利于非对称版本的方法,多极箱的划分比传统的代码更自由。这种变体提供了一个特别优雅的实现与平衡多极树,一个功能,这可能是非常有利的现代计算机体系结构。

英文摘要:

The notion of well-separated sets is crucial in fast multipole methods as the main idea is to approximate the interaction between such sets via cluster expansions. We revisit the one-parameter multipole acceptance criterion in a general setting and derive a relative error estimate. This analysis benefits asymmetric versions of the method, where the division of the multipole boxes is more liberal than in conventional codes. Such variants offer a particularly elegant implementation with a balanced multipole tree, a feature which might be very favorable on modern computer architectures.

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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