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arXiv 2104.08162math.RTmath.NT
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正交群的双覆盖上的非一般表示的Theta提升

Theta liftings of non-generic representations on double covers of orthogonal groups

Yusheng Lei

摘要:

研究了分裂特殊正交群的双覆盖之间的广义θ提升,它使用了Bump,Friedberg和Ginzburg构造的非极小θ表示.我们专注于θ提升的非通用表示,并提出了一个猜想,给出了一个上界的第一个非零发生的提升,只依赖于幂幺轨道。我们证明了全球和本地的结果,支持猜想。

英文摘要:

We study the generalized theta lifting between the double covers of split special orthogonal groups, which uses the non-minimal theta representations constructed by Bump, Friedberg and Ginzburg. We focus on the theta liftings of non-generic representations and make a conjecture that gives an upper bound of the first non-zero occurrence of the liftings, depending only on the unipotent orbit. We prove both global and local results that support the conjecture.

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