Depth preserving property of the local Langlands correspondence for non-quasi-split unitary groups

Masao Oi

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arXiv · 1807.08232

Depth preserving property of the local Langlands correspondence for non-quasi-split unitary groups

Masao Oi

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Abstract

In this paper, we extend our result on a depth preserving property of the local Langlands correspondence for quasi-split unitary groups (arXiv:1804.10901) to non-quasi-split unitary groups by using the local theta correspondence. The key ingredients are a depth preserving property of the local theta correspondence proved by Pan and a description of the local theta correspondence via the local Langlands correspondence established by Gan--Ichino. To combine them, we compare splittings for metaplectic covers of unitary groups constructed by Kudla with those constructed by Pan.

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Masao Oi. 2018-07-22. Depth preserving property of the local Langlands correspondence for non-quasi-split unitary groups. https://arxiv.org/abs/1807.08232

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