Weakly fair A_q(lambda) conjecture for the Dirac series of U(p,q)
Weakly fair A_q(lambda) conjecture for the Dirac series of U(p,q)
Let be the real unitary group, with complexified Lie algebra and maximal compact subgroup . Let be a cohomologically induced module, and call it weakly fair when its parameter satisfies the weakly fair range condition. Let denote the Dirac series, namely the irreducible unitary -modules with nonzero Dirac cohomology. Let
denote the necessary condition for nonzero Dirac cohomology given in Lemma 3.5.1 of the source. **Dirac-series conjecture.** Any Dirac series member of $U(p,q)$ must be a weakly fair $A_{\mathfrak{q}}(\lambda)$ module satisfying.
The conjecture would constrain all irreducible unitary representations with nonzero Dirac cohomology to the weakly fair cohomologically induced setting. The source presents it after computations through , but gives no resolution.
Sources & referencesView supporting material
Primary source
Chao-ping Dong and Kayue Daniel Wong, “On the Dirac Series of U(p,q)”, arXiv:2003.07165 (2020).
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