Module

ChosenPlaceIntegralBlockInducedSmul.lean

Nyll.ClassFieldTheory.AlgebraicNumberTheory.Idele.Cohomology.SPlaces.OutsideIntegralInduced.ChosenPlaceIntegralBlockInducedSmul
1 declaration indexed from sourceView source ↗

Equivariance of the induced integral block

This file proves that the inclusion of the chosen integral induced block is equivariant for the global Galois action.

Declarations

The embedding of the chosen integral induced block is equivariant for the full global Galois action.

Source context 12 commands

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

open scoped NumberField TensorProduct ValuativeRel NNReal
open NumberField IsDedekindDomain
noncomputable section
open AlgebraicNumberTheory.Valuations
open HilbertRamification
open LocalClassFieldTheory
open LocalFieldTheory
open CyclicCohomology.ProfiniteCohomology.Herbrand
open CyclicCohomology
variable
    {K : Type} {L : Type}
    [Field K] [NumberField K]
    [Field L] [NumberField L] [Algebra K L]
    [FiniteDimensional K L] [IsGalois K L]
section ChosenFinitePlace
omit [NumberField L] in
theorem chosenFinitePlaceIntegralInducedBlockToLocalPlaceBlock_smul
    (w₀ : HeightOneSpectrum (𝓞 K))
    (τ : L ≃ₐ[K] L) :
    ∀ f : ChosenFinitePlaceInducedIntegerUnits
        (K := K) (L := L) w₀,
    chosenFinitePlaceIntegralInducedBlockToLocalPlaceBlock
        (K := K) (L := L) w₀
        ((chosenFinitePlaceInducedIntegerUnitsAction
          (K := K) (L := L) w₀).smul τ f) =
      (chosenFinitePlaceLocalPlaceBlockAction
        (K := K) (L := L) w₀).smul τ
        (chosenFinitePlaceIntegralInducedBlockToLocalPlaceBlock
          (K := K) (L := L) w₀ f)