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arXiv 1708.03038math.RT
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与正交群相关的对称空间的广义Springer对应

Generalized Springer correspondence for symmetric spaces associated to orthogonal groups

Toshiaki Shoji, Gao Yang

摘要:

设$G = GL_N$是一个奇特征代数闭域,$θ$是$G$上的对合自同构,使得$H = (G^θ)^0$同构于$SO_N$ .然后把$G^{ιθ} = \{ g \in G \mid θ(g) = g^{-1} \}$看作对称空间$G/G^θ$。令$G^{ιθ}_{uni}$是$G^{ιθ}$中幂幺元素的集合。$H$通过结合作用于$G^{ιθ}_{uni}$。作为约化群中广义Springer对应的一个类似,本文建立了$G^{ιθ}_{uni}$中的$H$ -轨道与各种对称群的不可约表示之间的广义Springer对应.

英文摘要:

Let $G = GL_N$ over an algebraically closed field of odd characteristic, and $θ$ an involutive automorphism on $G$ such that $H = (G^θ)^0$ is isomorphic to $SO_N$. Then $G^{ιθ} = \{ g \in G \mid θ(g) = g^{-1} \}$ is regarded as a symmetric space $G/G^θ$. Let $G^{ιθ}_{uni}$ be the set of unipotent elements in $G^{ιθ}$. $H$ acts on $G^{ιθ}_{uni}$ by the conjugation. As an analogue of the generalized Springer correspondence in the case of reductive groups, we establish in this paper the generalized Springer correspondence between $H$-orbits in $G^{ιθ}_{uni}$ and irreducible representations of various symmetric groups.

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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