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arXiv math-ph/0506022math-phmath.MP
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经典场论的多辛拉格朗日和哈密顿形式

Multisymplectic Lagrangian and Hamiltonian Formalisms of Classical Field Theories

Narciso Román-Roy

摘要:

这篇综述论文致力于提出描述几何经典场论的标准多辛公式,包括正则和奇异情形。首先,拉格朗日形式主义的主要特点是重温,第二,哈密顿形式主义构造使用哈密顿部分。在这两种情况下,变分原理导致的欧拉-拉格朗日和汉密尔顿-德唐德-外尔方程,分别说明,这些场方程给出了不同的,但在每个形式主义的等效几何方式。最后,两者都统一在一个新的提法(已在过去几年中开发),以下的原始想法的腊斯克和斯金纳的机械系统。

英文摘要:

This review paper is devoted to presenting the standard multisymplectic formulation for describing geometrically classical field theories, both the regular and singular cases. First, the main features of the Lagrangian formalism are revisited and, second, the Hamiltonian formalism is constructed using Hamiltonian sections. In both cases, the variational principles leading to the Euler-Lagrange and the Hamilton-De Donder-Weyl equations, respectively, are stated, and these field equations are given in different but equivalent geometrical ways in each formalism. Finally, both are unified in a new formulation (which has been developed in the last years), following the original ideas of Rusk and Skinner for mechanical 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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