Module

RayPrincipalIdealSubgroup.lean

Nyll.ClassFieldTheory.Definitions.ConductorsAndRayClassFields.RayPrincipalIdealSubgroup
2 declarations indexed from sourceView source ↗

Ray-principal ideals

Declarations

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 u
def rayPrincipalIdealSubgroup
    {K : Type u} [Field K] [NumberField K]
    (m : RayClassModulus K) :
    Subgroup (NumberFieldFractionalIdealGroup K)
ClassFieldTheory.rayPrincipalIdealSubgroupInPrimeTo

Ray-principal ideals, restricted to the group of ideals prime to the modulus.

Source context 4 commands

Surrounding namespaces, section variables, and local commands at this declaration.

open scoped NumberField
open NumberField
namespace ClassFieldTheory
universe u
def rayPrincipalIdealSubgroupInPrimeTo
    {K : Type u} [Field K] [NumberField K]
    (m : RayClassModulus K) :
    Subgroup (rayClassPrimeToIdeals m)