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arXiv · 2208.09903

Dirac series of $\mathrm{GL}(n)$ over an Archimedean field

Yihao Ding·Hongfeng Zhang
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Abstract

Motivated by the $(\mathfrak{g},K)$-cohomology and Dirac cohomology, we determine Dirac series of $\mathrm{GL}(n,\mathbb{H})$, and show that the spin lowest $K$-type of any Dirac series, which determines the Dirac cohomology, is unique and multiplicity-free for both $\mathrm{GL}(n,\mathbb{H})$ and $\mathrm{GL}(n,\mathbb{R})$. This verifies a conjecture about uniqueness of the spin lowest $K$-type of Dirac series for $\mathrm{GL}(n,\mathbb{R})$ proposed by Dong and Wong.

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BibTeXRIS

Yihao Ding, Hongfeng Zhang. 2022-08-21. Dirac series of $\mathrm{GL}(n)$ over an Archimedean field. https://arxiv.org/abs/2208.09903

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