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arXiv 1209.3002math.RTmath-phmath.MP
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球面簇的Weyl维数公式的限制根和限制形式

Restricted Roots and Restricted Form of Weyl Dimension Formula for Spherical Varieties

Simon Gindikin, Roe Goodman

摘要:

本文研究了一类半单群球面齐性空间的限制根,其中包含单连通对称空间。对于这些空间,我们给出了一个详细的描述(情况下)的一组根与每个限制根的空间(套限制根)。作为一个应用,我们得到了一个细化的Weyl维数公式的情况下,球面表示,表示为一个产品的一组不可分的正限制根的尺寸。

英文摘要:

We study in this paper the restricted roots for a class of spherical homogeneous spaces of semisimple groups which includes simply connected symmetric spaces. For these spaces we give a detailed description (case by case) of the set of roots of the group associated with each restricted root of the space (the nest of the restricted root). As an application, we obtain a refinement of the Weyl dimension formula in the case of spherical representations, expressing the dimension as a product over the set of indivisible positive restricted roots.

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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