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arXiv math/0402367math.NAcs.NAnlin.AO
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对称保持的离散格式用于某些热传导方程

Symmetry-preserving discrete schemes for some heat transfer equations

Margarita Bakirova, Vladimir Dorodnitsyn, Roman Kozlov

AI总结:

本文通过三个例子展示如何在离散模型中保持热传导方程的连续对称性,以保留差分方程的定性性质。

摘要:

微分方程的李群分析是一种公认的方法,它提供不变解、可积性、守恒律等。本文我们给出了三个构造不变差分方程和网格的特征性例子,其中原始连续对称性在离散模型中得到保持。在差分建模中保持对称性有助于在差分对应物中保留微分方程的定性性质。

英文摘要:

Lie group analysis of differential equations is a generally recognized method, which provides invariant solutions, integrability, conservation laws etc. In this paper we present three characteristic examples of the construction of invariant difference equations and meshes, where the original continuous symmetries are preserved in discrete models. Conservation of symmetries in difference modeling helps to retain qualitative properties of the differential equations in their difference counterparts.

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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