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arXiv 1601.04882math.NAcs.NAmath.OC
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分数拉格朗日系统的变分积分器:在离散嵌入框架中的研究

Variational integrators of fractional Lagrangian systems in the framework of discrete embeddings

Loïc Bourdin, Jacky Cresson, Isabelle Greff, Pierre Inizan

AI总结:

本文在离散嵌入框架下研究分数拉格朗日系统的变分积分器,通过保持离散层面的拉格朗日结构,扩展了传统变分积分器的应用范围。

摘要:

本文是对[5]中引入的离散嵌入理论的总结。离散嵌入是一种代数过程,将数值方案与给定的常微分方程关联起来。拉格朗日系统具有称为拉格朗日结构的变分结构。我们特别关注通过离散嵌入在离散层面保持这种拉格朗日结构。然后,我们在此框架下替换了在[10, 第六章第六节]和[12]中开发的变分积分器。最后,我们将离散嵌入和变分积分器的概念扩展到分数拉格朗日系统中。

英文摘要:

This paper is a summary of the theory of discrete embeddings introduced in [5]. A discrete embedding is an algebraic procedure associating a numerical scheme to a given ordinary differential equation. Lagrangian systems possess a variational structure called Lagrangian structure. We are specially interested in the conservation at the discrete level of this Lagrangian structure by discrete embeddings. We then replace in this framework the variational integrators developed in [10, Chapter VI.6] and in [12]. Finally, we extend the notion of discrete embeddings and variational integrators to fractional Lagrangian systems.

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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