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arXiv 1209.0890math.GR
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李群作用于建筑物的一个不动点定理及其在Kac-Moody理论中的应用

A fixed point theorem for Lie groups acting on buildings and applications to Kac-Moody theory

Timothée Marquis

摘要:

我们建立了一类局部紧群的不动点性质,包括几乎连通的李群和有限交换宽度的紧群,它们通过单纯等距作用于具有可测点稳定器的有限秩建筑物上.作为应用,我们推导出实或复Kac-Moody群的所有拓扑单参数子群都是通过对相应李代数的ad-局部有限元求幂而得到的.

英文摘要:

We establish a fixed point property for a certain class of locally compact groups, including almost connected Lie groups and compact groups of finite abelian width, which act by simplicial isometries on finite rank buildings with measurable stabilisers of points. As an application, we deduce amongst other things that all topological one-parameter subgroups of a real or complex Kac-Moody group are obtained by exponentiating ad-locally finite elements of the corresponding Lie algebra.

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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