arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.00913math.RT
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$GL(n, \mathbb{R})$的Dirac级数

Dirac series of $GL(n, \mathbb{R})$

Chao-Ping Dong, Kayue Daniel Wong

摘要:

$GL(n, \mathbb{R})$的酉对偶在20世纪80年代由Vogan分类。研究了具有半整数无穷小特征标的$GL(n, \mathbb{R})$的不可约酉表示,发现Speh表示和特殊的幂幺表示是构造块.通过研究它们的$K$型,利用Blattner型公式,得到了$GL(n, \mathbb{R})$的所有Dirac上同调非零的不可约酉$(\mathfrak{g}, K)$模,以及它们的自旋最低$K$型的公式.此外,类似于[DW 1]中给出的$GL(n,\mathbb{C})$情况,我们计算了$GL(n, \mathbb{R})$的FS-散射表示的数量。

英文摘要:

The unitary dual of $GL(n, \mathbb{R})$ was classified by Vogan in the 1980s. Focusing on the irreducible unitary representations of $GL(n, \mathbb{R})$ with half-integral infinitesimal characters, we find that Speh representations and the special unipotent representations are building blocks. By looking at the $K$-types of them, and by using a Blattner-type formula, we obtain all the irreducible unitary $(\mathfrak{g}, K)$-modules with non-zero Dirac cohomology of $GL(n, \mathbb{R})$, as well as a formula for (one of) their spin-lowest $K$-types. Moreover, analogous to the $GL(n,\mathbb{C})$ case given in [DW1], we count the number of the FS-scattered representations of $GL(n, \mathbb{R})$.

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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