Does QuadraticField use any special algorithms for computing the class group of quadratic imaginary number fields?
 
  
 
  
 
 
 
 
 
 
    
        
        asked 9 years ago  
 
 Dan Shumow gravatar image  
 
 
 
 
    
        
        updated 9 years ago  
 
 FrédéricC gravatar image  
 
 
 
 
 
I need to compute the class group of a quadratic imaginary number field that has a fairly large discriminant (over 96 bits.)  I was wondering what, if any, algorithms the QuadraticField class uses for computing the class group.
 
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This is most probably delegated to pari/gp
FrédéricC gravatar imageFrédéricC (
    
        9 years ago
    )
See the doc of qfbclassno in http://pari.math.u-bordeaux.fr/dochtm...
FrédéricC gravatar imageFrédéricC (
    
        9 years ago
    )
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