The 2-class group of biquadratic fields. II
The 2-class group of biquadratic fields. II
We describe methods for determining the exact power of 2 dividing the class number of certain cyclic biquadratic number fields.In a recent article, we developed a relative genus theory for cyclic biquadratic fields whose quadratic subfields have odd class number; we considered the case in which the quadratic subfield is …