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arXiv 0810.2990math.NTmath.RT
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辛正交对偶的θ提升的局部-整体非零结果

Some local-global non-vanishing results of theta lifts for symplectic-orthogonal dual pairs

Shuichiro Takeda

摘要:

按照B. Roberts,我们刻画了辛正交对偶对的全局θ提升的非零性。特别是,我们取代temperedness假设罗伯特的工作中存在的一定较弱的假设,并将我们的结果小秩相似群。在我们的应用中,有一个例子是把$GSp(4)$的(非一般的)尖点自守表示转换成GL(4)的Langlands函子。

英文摘要:

Following the approach of B. Roberts, we characterize the non-vanishing of global theta lifts for symplectic-orthogonal dual pairs in terms of its local counterpart. In particular, we replace the temperedness assumption present in Robert's work by a certain weaker assumption, and apply our results to small rank similitude groups. Among our applications is a certain instance of Langlands functorial transfer of a (non-generic) cuspidal automorphic representation of $GSp(4)$ to GL(4).

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