Geometric comparison of complex and -adic Arthur–Vogan packets
Let , , , and be as above, and let denote the corresponding parameter on the complex side. On the -adic side, let and the Arthur–Vogan packets be as defined above. Geometric comparison conjecture. When is even, there is a bijection
When is odd, there is a bijection
This proposes a direct comparison between the complex and -adic Arthur–Vogan packets, with the parity of determining whether one complex packet or a disjoint union over unitary groups occurs. The source provides no resolution, so the conjecture remains open.
References
Primary source
Taiwang Deng, Chang Huang, Bin Xu and Qixian Zhao, “On a geometric comparison of representations of complex and p-adic GL_n”, arXiv:2504.15653 (2026).
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