The multiplicative subgroup of all elements in the product of the multiplicative groups whose absolute value is 1 at all but finitely many , where is a number Field and a Place.

**References**

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

© 1996-9

1999-05-26