ClassFieldTheory.rayPrincipalIdealSubgroup
The subgroup generated by principal fractional ideals whose generators satisfy the ray congruence.
Source context 4 commands
Surrounding namespaces, section variables, and local commands at this declaration.
open scoped NumberField
open NumberField
namespace ClassFieldTheory
universe uLean source · statement
def rayPrincipalIdealSubgroup
{K : Type u} [Field K] [NumberField K]
(m : RayClassModulus K) :
Subgroup (NumberFieldFractionalIdealGroup K)