Module

PrincipalUnitPadicContinuity.lean

Nyll.ValuedFieldTheory.LocalField.Analytic.PrincipalUnitPadicContinuity
1 declaration indexed from sourceView source ↗

Continuity of the principal-unit p-adic action for the actual valuation

Declarations

LocalFieldTheory.DiscreteValuationField.MultiplicativeIntegerValuation.principalUnitPadicContinuousSMul

The actual principal-unit p-adic action is continuous in the valuation topology.

Source context 5 commands

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

namespace LocalFieldTheory.DiscreteValuationField.MultiplicativeIntegerValuation
universe u
variable {K : Type u} [Field K] [Valued K (WithZero (Multiplicative ℤ))]
variable [ValuationTheory.DiscreteValuationField.Valuation.IsCompleteDiscrete
  (Valued.v : _root_.Valuation K (WithZero (Multiplicative ℤ)))]
open CompleteDVF.higherPrincipalUnitGroup
theorem principalUnitPadicContinuousSMul (p : ℕ) [Fact p.Prime]
    [hres : CharP (completeDVFOfWithZeroValuation
      (Valued.v : _root_.Valuation K (WithZero (Multiplicative ℤ)))).residueField p] :
    @ContinuousSMul ℤ_[p]
      (Additive (CompleteDVF.higherPrincipalUnitGroup (completeDVFOfWithZeroValuation
        (Valued.v : _root_.Valuation K (WithZero (Multiplicative ℤ)))) 1))
      (principalUnitPadicModuleOfResidueChar (completeDVFOfWithZeroValuation
        (Valued.v : _root_.Valuation K (WithZero (Multiplicative ℤ)))) p).toSMul
      inferInstance inferInstance