Published online by Cambridge University Press: 26 February 2010
Let K be a number field of degree nK = r1 + 2r2, a fixed integral ideal and
the group of fractional ideals of K whose prime decomposition contains no prime factors of
. Let
and be an arbitrary Groessencharaktere mod f as defined in [15]. Then
and, for
where {λi} forms a basis for the torsion–free characters on whose value on any
depends only on the
that exists such that a = (α). Note that because of the choice in such an α we have that
1 for all units ε in K satisfying
(mod
), ε>0. Also, x is a narrow ideal class character mod
, that is, a character on