Local-global compatibility for regular algebraic cuspidal automorphic representations when $\ell \neq p$
In: Forum of Mathematics, Sigma, Jg. 12 (2024)
Online
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Zugriff:
We prove the compatibility of local and global Langlands correspondences for $\operatorname {GL}_n$ up to semisimplification for the Galois representations constructed by Harris-Lan-Taylor-Thorne [10] and Scholze [18]. More precisely, let $r_p(\pi )$ denote an n-dimensional p-adic representation of the Galois group of a CM field F attached to a regular algebraic cuspidal automorphic representation $\pi $ of $\operatorname {GL}_n(\mathbb {A}_F)$ . We show that the restriction of $r_p(\pi )$ to the decomposition group of a place $v\nmid p$ of F corresponds up to semisimplification to $\operatorname {rec}(\pi _v)$ , the image of $\pi _v$ under the local Langlands correspondence. Furthermore, we can show that the monodromy of the associated Weil-Deligne representation of $\left .r_p(\pi )\right |{}_{\operatorname {Gal}_{F_v}}$ is ‘more nilpotent’ than the monodromy of $\operatorname {rec}(\pi _v)$ .
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Local-global compatibility for regular algebraic cuspidal automorphic representations when $\ell \neq p$
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Autor/in / Beteiligte Person: | Varma, Ila |
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Zeitschrift: | Forum of Mathematics, Sigma, Jg. 12 (2024) |
Veröffentlichung: | Cambridge University Press, 2024 |
Medientyp: | academicJournal |
ISSN: | 2050-5094 (print) |
DOI: | 10.1017/fms.2024.7 |
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