arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv math-ph/9904007math-phmath.MP
收藏

关于场论中的多动量丛和勒让德映射

On the Multimomentum Bundles and the Legendre Maps in Field Theories

A. Echeverria-Enriquez, M. C. Munoz-Lecanda, N. Roman-Roy

摘要:

我们研究了一阶经典场论的哈密顿形式的几何背景。特别地,分析和比较了通常文献中存在的多动量丛的不同建议(包括它们的正则结构)。介绍了相应的Legendre映射。因此,正则和几乎正则拉格朗日系统的定义进行了审查和扩展,从不同的,但等价的方式。

英文摘要:

We study the geometrical background of the Hamiltonian formalism of first-order Classical Field Theories. In particular, different proposals of multimomentum bundles existing in the usual literature (including their canonical structures) are analyzed and compared. The corresponding Legendre maps are introduced. As a consequence, the definition of regular and almost-regular Lagrangian systems is reviewed and extended from different but equivalent ways.

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。

↑