On the Kottwitz conjecture for local shtuka spaces
On the Kottwitz conjecture for local shtuka spaces
复制标题
关于局部 shtuka 空间的 Kottwitz 猜想
DOI:
10.1017/fmp.2022.7
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Weinstein, Jared
中科院分区:
文献类型:
--
作者:
Hansen, David;Kaletha, Tasho;Weinstein, Jared
Kottwitz’s conjecture describes the contribution of a supercuspidal representation to the cohomology of a local Shimura variety in terms of the local Langlands correspondence. A natural extension of this conjecture concerns Scholze’s more general spaces of local shtukas. Using a new Lefschetz–Verdier trace formula for v-stacks, we prove the extended conjecture, disregarding the action of the Weil group, and modulo a virtual representation whose character vanishes on the locus of elliptic elements. As an application, we show that, for an irreducible smooth representation of an inner form of , the L-parameter constructed by Fargues–Scholze agrees with the usual semisimplified parameter arising from local Langlands.
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