Automorphic-to-Galois compatibility conjecture for GL(n)

Let HH be a multiset of nn integers and let π\pi be an irreducible constituent of the cuspidal automorphic spectrum with infinitesimal character HH. After identifying QC\overline{\mathbb{Q}}\subset\mathbb{C}, each local Langlands parameter recp(πp)\operatorname{rec}_p(\pi_p) should be definable over Q\overline{\mathbb{Q}}.

Automorphic-to-Galois compatibility conjecture. There is an irreducible geometric strongly compatible system R\mathcal{R} of l-adic representations such that

HT(R)=H,WDp(R)ss=recp(πp)for all primes p.\operatorname{HT}(\mathcal{R})=H,\qquad \operatorname{WD}_p(\mathcal{R})^{\operatorname{ss}}=\operatorname{rec}_p(\pi_p)\quad\text{for all primes }p.

This predicts the Galois representation attached to a cuspidal automorphic representation and compatibility at every finite place. The source gives no general resolution status.

Sources & referencesView supporting material

Primary source

Richard Taylor, “Galois representations”, arXiv:math/0212403 (2002).

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