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arXiv 2207.04073math.NTmath.AGmath.RT
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分类栈上的$p$ -adic层和$p$ -adic Jacquet-Langlands对应

$p$-adic sheaves on classifying stacks, and the $p$-adic Jacquet-Langlands correspondence

David Hansen, Lucas Mann

摘要:

利用Lubin-Tate塔的上同调,建立了Scholze定义的$p$ -adic Jacquet-Langlands函子的几个新性质.特别地,我们重新证明了Scholze的基本有限性定理,证明了一个对偶定理,并给出了一种偏Künneth公式。利用这些结果,我们推出了Gelfand-Kirillov维数的界,以及一些新的消失和非消失结果。我们的关键新工具是六函子形式主义与固体几乎$\mathcal{O}^+/p$ -系数最近开发的第二作者[曼22]。本文的一个主要观点是扩展[Man 22]中开发的$!$ -函子形式主义的有效域,以允许某些“堆叠”映射。在这种扩展的形式主义的语言,我们表明,如果$G$是一个$p$ -进李群,分类小v-栈$B\underline{G}$的结构图是$p$ -上同调光滑。

英文摘要:

We establish several new properties of the $p$-adic Jacquet-Langlands functor defined by Scholze in terms of the cohomology of the Lubin-Tate tower. In particular, we reprove Scholze's basic finiteness theorems, prove a duality theorem, and show a kind of partial Künneth formula. Using these results, we deduce bounds on Gelfand-Kirillov dimension, together with some new vanishing and nonvanishing results. Our key new tool is the six functor formalism with solid almost $\mathcal{O}^+/p$-coefficients developed recently by the second author [Man22]. One major point of this paper is to extend the domain of validity of the $!$-functor formalism developed in [Man22] to allow certain "stacky" maps. In the language of this extended formalism, we show that if $G$ is a $p$-adic Lie group, the structure map of the classifying small v-stack $B\underline{G}$ is $p$-cohomologically smooth.

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