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arXiv 1503.08197math.NTmath.RT
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通过非唯一模型在$\mathrm{GSp}_6$上的自旋$L$ -函数

The Spin $L$-function on $\mathrm{GSp}_6$ via a non-unique model

Aaron Pollack, Shrenik Shah

摘要:

我们给出了两个整体积分展开到一个非唯一的模型,并表示部分自旋$L$ -功能$\mathrm{GSp}_6$。我们推断,对于广泛的一类尖形自守表示$π,$的部分自旋$L$ -功能是全纯的,除了一个可能的简单极点在$s=1$,这样一个极点的存在表明,$π$是一个例外的θ提升$\mathrm{G}_2$。这些结果利用并扩展了GAN和Gurevich以前的工作,Gan和Gurevich引入了一个全局积分,并证明了这些事实对于这些$π$的一个特殊子类,根据该子类,上述模型变得唯一。另一个积分可以看作是$\mathrm{GSp}_4$上Kohnen-Skoruppa积分的高阶模拟。

英文摘要:

We give two global integrals that unfold to a non-unique model and represent the partial Spin $L$-function on $\mathrm{GSp}_6$. We deduce that for a wide class of cuspidal automorphic representations $π,$ the partial Spin $L$-function is holomorphic except for a possible simple pole at $s=1$, and that the presence of such a pole indicates that $π$ is an exceptional theta lift from $\mathrm{G}_2$. These results utilize and extend previous work of Gan and Gurevich, who introduced one of the global integrals and proved these facts for a special subclass of these $π$ upon which the aforementioned model becomes unique. The other integral can be regarded as a higher rank analogue of the integral of Kohnen-Skoruppa on $\mathrm{GSp}_4$.

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