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arXiv 1310.2015math.DG
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关于李群表示的延拓

On the Prolongations of Representations of Lie Groups

Hulya Kadioglu, Erdogan Esin

摘要:

本文主要研究李群的表示的置换。利用G的表示(不一定是忠实的),得到了TG的忠实(一对一)表示,其中G是有限维李群,TG是G的切丛.我们证明了李群作用的正切函数对应于延拓表示。我们证明了如果两个表示是等价的,那么它们的表示也是等价的。我们证明了如果U是一个表示的不变子空间,那么TU是一个给定表示的延长的不变子空间,反之亦然。证明了如果Φ的延拓是不可约表示,则Φ也是不可约表示.最后证明了两个表示的直和的交换是它们交换的直和。

英文摘要:

In this paper, we introduce a study of prolongations of representations of Lie groups. We obtain a faithful (one-to-one) representation of TG where G is a finite-dimensional Lie group and TG is the tangent bundle of G, by using (not necessarily faithful) representations of G. We show that tangent functions of Lie group actions correspond to prolonged representations. We prove that if two representations are equivalent, then their prolongations are equivalent too. We show that if U is an invariant subspace for a representation, then TU is an invariant subspace for the prolongation of the given representation and vice versa. We prove that if the prolongation of Φis an irreducible representation, then Φis also an irreducible representation. Finally we show that prolongations of direct sum of two representations are direct sum of their prolongations.

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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