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arXiv 1801.03047math.RA
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二次李代数中心扩张的不变度量

Invariant metrics on central extensions of Quadratic Lie algebras

R. García-Delgado, G. Salgado, O. A. Sánchez-Valenzuela

摘要:

二次李代数是具有对称、不变和非退化的双线性型的李代数;这样的双线性型称为不变度量。本文的目的是描述具有不变度量的二次李代数的中心扩张的一般结构。其结构是这样的,中心扩张可以用原来的二次李代数代数地描述,和几何上的直和分解,涉及的不变度量产生。

英文摘要:

A quadratic Lie algebra is a Lie algebra endowed with a symmetric, invariant and non degenerate bilinear form; such a bilinear form is called an invariant metric. The aim of this work is to describe the general structure of those central extensions of quadratic Lie algebras which in turn have invariantmetrics. The structure is such that the central extensions can be described algebraically in terms of the original quadratic Lie algebra, and geometrically in terms of the direct sum decompositions that the invariant metrics involvedgive rise to.

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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