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arXiv 1909.05933math.NTmath.RT
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$p$ -adic $G_2$的一般超尖点表示的局部Langlands参数化

A local Langlands parameterization for generic supercuspidal representations of $p$-adic $G_2$

Michael Harris, Chandrashekhar B. Khare, Jack A. Thorne

摘要:

构造了$p$ -adic域上$G_2$超尖点表示的Langlands参数化.更准确地说,对于任何有限扩张$K / \QQ_p$,我们将构造一个从$G_2(K)$的一般超尖点表示集到不可约连续同态集$ρ: W_K \to G_2(\CC)$的双射\[ \CL_g : \CA^0_g(G_2,K) \rightarrow \CG^0(G_2,K) \],其中$W_K$是$K$的Weil群。这个映射的构造仅仅是一个集合文献中已有的论证的问题,再加上一个以前未发表的G。萨文对特殊θ对应,包括作为附录。映射是双射的证明本质上是算术的,特别是使用自同构提升定理。由于Hundley和Liu最近关于从$GL(7)$到$G_2$的自守下降的结果,这些可以应用。

英文摘要:

We construct a Langlands parameterization of supercuspidal representations of $G_2$ over a $p$-adic field. More precisely, for any finite extension $K / \QQ_p$ we will construct a bijection \[ \CL_g : \CA^0_g(G_2,K) \rightarrow \CG^0(G_2,K) \] from the set of generic supercuspidal representations of $G_2(K)$ to the set of irreducible continuous homomorphisms $ρ: W_K \to G_2(\CC)$ with $W_K$ the Weil group of $K$. The construction of the map is simply a matter of assembling arguments that are already in the literature, together with a previously unpublished theorem of G. Savin on exceptional theta correspondences, included as an appendix. The proof that the map is a bijection is arithmetic in nature, and specifically uses automorphy lifting theorems. These can be applied thanks to a recent result of Hundley and Liu on automorphic descent from $GL(7)$ to $G_2$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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