[back] [prev] [next] [index] [root]

 


OrderKextDisc

Computes the relative discriminant of a Kummer extension of prime degree.

Syntax:

disc := OrderKextDisc(F);

ideal
  disc  
order
  F  

Description:

The function computes the relative discriminant of a Kummer extension of prime degree using results of Dabe2. The function will first check, whether or not F is such an extension. The Discriminant is an ideal in the coefficient ring of F.


Example:

Discriminant of {\Bbb Q}(\sqrt{10}, \sqrt{5}) over {\Bbb Q} (\sqrt{10})

kash> E := OrderMaximal (Z,2,10);;
kash> F := Order (E,2,5);
      F[1]
        /
       /
   E1[1]
  /
 /
Q
F  [ 1]     x^2 - 5
E 1[ 1]     x^2 - 10

kash> OrderKextDisc (F);
> <1, 1>


<- back[back] [prev] [next] [index] [root]