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arXiv 1901.03573math.NAcs.NA
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哈密顿系统的线性隐式保结构格式

Linearly implicit structure-preserving schemes for Hamiltonian systems

Sølve Eidnes, Lu Li, Shun Sato

摘要:

Kahan方法和两步推广的离散梯度法都是线性隐式方法,对于具有立方哈密顿量的哈密顿系统,它们可以保持修正的能量。本文对这些方法进行了研究和比较。将该格式应用于Korteweg-de Vries方程和Camassa-Holm方程,给出了数值结果并进行了分析。

英文摘要:

Kahan's method and a two-step generalization of the discrete gradient method are both linearly implicit methods that can preserve a modified energy for Hamiltonian systems with a cubic Hamiltonian. These methods are here investigated and compared. The schemes are applied to the Korteweg-de Vries equation and the Camassa-Holm equation, and the numerical results are presented and analysed.

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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