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Why is Class Field Theory the same as Langlands for GL_1?

What you are looking for is the correspondence between algebraic Hecke characters over a number field $F$ and compatible families of $l$-adic characters of the absolute Galois group of $F$. This is la …
Keerthi Madapusi's user avatar
9 votes

What's the status of Arthur's announced classification for GSp(4)?

A student of Arthur, Bin Xu, has worked on the general problem of classifying automorphic representations for $GSp(2n)$. See his webpage here, or better: Bin Xu, Endoscopic Classification of Repre …
Keerthi Madapusi's user avatar