Cheng Xiaoyun on Sun, 17 Sep 2006 13:04:47 +0200


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class number of biquadratic number field


When I use rnfinit to compute the class number of biquadratic number field, I can not get the result. When I write the following:
? x;y;
? f=y^2-3
? e=bnfinit(f)
? y=Mod(y,f)
? g=x^2-2
? e=rnfinit(e,g)
? e.clgp
 
I only get "incorrect type in .clgp" .  I think that the class group can only be given for big number fields. But how can I get big number field for relative number fields.
 
 
 Best regards
Cheng Xiaoyun