Does QuadraticField use any special algorithms for computing the class group of quadratic imaginary number fields?
 
  
 
  
 
 
 
 
 
 
    
        
        asked 10 years ago  
 
 Dan Shumow gravatar image  
 
 
 
 
    
        
        updated 10 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 (
    
        10 years ago
    )
See the doc of qfbclassno in http://pari.math.u-bordeaux.fr/dochtm...
FrédéricC gravatar imageFrédéricC (
    
        10 years ago
    )
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