Langlands Reciprocity

The conjecture that the Artin L-Function of any $n$-D Galois Group representation is an L-Function obtained from the General Linear Group $GL_1(\Bbb{A})$.

References

Knapp, A. W. ``Group Representations and Harmonic Analysis, Part II.'' Not. Amer. Math. Soc. 43, 537-549, 1996.