Compatibility of Local and Global Langlands Correspondences

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Compatibility of Local and Global Langlands Correspondences

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Title: Compatibility of Local and Global Langlands Correspondences
Author: Taylor, Richard L.; Yoshida, Teruyoshi

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Citation: Taylor, Richard L., and Teruyoshi Yoshida. 2007. Compatibility of local and global langlands correspondences. Journal of the American Mathematical Society 20: 467-493.
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Abstract: We prove the compatibility of local and global Langlands correspondences for \(GL_n\), which was proved up to semisimplification in M. Harris and R. Taylor, The Geometry and Cohomology of Some Simple Shimura Varieties, Ann. of Math. Studies 151, Princeton Univ. Press, Princeton-Oxford, 2001. More precisely, for the \(n\)-dimensional \(l-\)adic representation \(R_l(\Pi)\) of the Galois group of an imaginary CM-field \(L\) attached to a conjugate self-dual regular algebraic cuspidal automorphic representation \(\Pi\) of \(GL_n(\mathbb{A}_l)\), which is square integrable at some finite place, we show that Frobenius semisimplification of the restriction of \(R_l(\Pi)\) to the decomposition group of a place \(v\) of \(L\) not dividing \(l\) corresponds to \(\Pi_v\) by the local Langlands correspondence. If \(\Pi_v\) is square integrable for some finite place \(v \not\vert l \) we deduce that \(R_l(\Pi)\) is irreducible. We also obtain conditional results in the case of \(v\vert l\).
Published Version: doi:10.1090/S0894-0347-06-00542-X
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3550505

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  • FAS Scholarly Articles [7588]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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