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arXiv 1708.06341math.RTmath.AG
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例外群的有限型重旗簇

Finite type multiple flag varieties of exceptional groups

Dan Barbasch, Sergio Da Silva, Balázs Elek, Gautam Gopal Krishnan

摘要:

考虑单复李群$G$对角作用在三重旗簇$G/P_1\times G/P_2\times G/P_3$上,其中$P_i$是$G$的抛物子群.我们提供了一个算法,系统地检查时,这个行动有许多轨道。然后,我们使用这种方法给出一个完整的分类时,$G$是类型$F_4$。$E_6, E_7,$和$E_8$病例将在随后的论文中讨论。

英文摘要:

Consider a simple complex Lie group $G$ acting diagonally on a triple flag variety $G/P_1\times G/P_2\times G/P_3$, where $P_i$ is parabolic subgroup of $G$. We provide an algorithm for systematically checking when this action has finitely many orbits. We then use this method to give a complete classification for when $G$ is of type $F_4$. The $E_6, E_7,$ and $E_8$ cases will be treated in a subsequent paper.

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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