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arXiv 1004.1397hep-thmath-phmath.GRmath.MPmath.RA
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Cartan-Weyl 3-代数与BLG理论I:Cartan-Weyl 3-代数的分类

Cartan-Weyl 3-algebras and the BLG Theory I: Classification of Cartan-Weyl 3-algebras

Chong-Sun Chu

摘要:

半单李代数作为紧连通李群的李代数,在描述物理系统的连续对称性方面有着广泛的应用。在数学上,半单李代数存在一个生成元的Cartan-Weyl基,它由一个相互交换的生成元的Cartan子代数H_I和若干个阶生成元E^α组成,这些阶生成元的特征在于一个非退化的单形式的根空间α。这种简单的根空间分解允许半单李代数的完整分类。本文引入了Cartan-Weyl李3-代数的类似概念。我们分析了它们的结构,并得到了它们的完整分类。度量李3-代数的许多已知例子(例如洛伦兹3-代数)是Cartan-Weyl 3-代数的特例。由于Cartan-Weyl 3-代数结构简洁,我们推测它可能是描述某些广义对称的有用工具。作为一个应用,我们考虑它们在Bagger-Lambert-Gustavsson(BLG)理论中的应用。

英文摘要:

As Lie algebras of compact connected Lie groups, semisimple Lie algebras have wide applications in the description of continuous symmetries of physical systems. Mathematically, semisimple Lie algebra admits a Cartan-Weyl basis of generators which consists of a Cartan subalgebra of mutually commuting generators H_I and a number of step generators E^αthat are characterized by a root space of non-degenerate one-forms α. This simple decomposition in terms of the root space allows for a complete classification of semisimple Lie algebras. In this paper, we introduce the analogous concept of a Cartan-Weyl Lie 3-algebra. We analyze their structure and obtain a complete classification of them. Many known examples of metric Lie 3-algebras (e.g. the Lorentzian 3-algebras) are special cases of the Cartan-Weyl 3-algebras. Due to their elegant and simple structure, we speculate that Cartan-Weyl 3-algebras may be useful for describing some kinds of generalized symmetries. As an application, we consider their use in the Bagger-Lambert-Gustavsson (BLG) theory.

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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