Module

SemilinearAut_correspondence_smul.lean

Nyll.AlgebraicCurves.Divisors.Semilinear.SemilinearAut_correspondence_smul
2 declarations indexed from sourceView source ↗

Semilinear Aut correspondence smul

Declarations

AlgebraicCurves.Divisors.Semilinear.Proofs.SemilinearAut_correspondence_smul.solution
Source context 5 commands

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

section ProofImplementation
namespace AlgebraicCurves.Divisors.Semilinear.Proofs.SemilinearAut_correspondence_smul
open AlgebraicCurve AlgebraicCurve.SemilinearAut
open scoped Pointwise
noncomputable section
theorem solution {K F F' : Type*} [Field K] [Field F] [Field F'] [Algebra K F] [Algebra K F'] {g :
  SemilinearAut K F} {g' : SemilinearAut K F'} [HasPrincipalDivisors K F'] (φ ψ : F →ₐ[K] F') (hφ :
  φ.toRingHom.IsIntegral) (hψ : ψ.toRingHom.IsIntegral) (hgφ : IntertwinesAlong φ.toRingHom g g')
  (hgψ : IntertwinesAlong ψ.toRingHom g g') (D : Divisor K F) : Divisor.correspondence φ ψ hφ hψ (g
  • D) = g • Divisor.correspondence φ ψ hφ hψ D
AlgebraicCurve.SemilinearAut.correspondence_smul
Source context 1 command

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

open AlgebraicCurve AlgebraicCurve.SemilinearAut
theorem AlgebraicCurve.SemilinearAut.correspondence_smul {K F F' : Type*} [Field K] [Field F]
  [Field F'] [Algebra K F] [Algebra K F'] {g : SemilinearAut K F} {g' : SemilinearAut K F'}
  [HasPrincipalDivisors K F'] (φ ψ : F →ₐ[K] F') (hφ : φ.toRingHom.IsIntegral) (hψ :
  ψ.toRingHom.IsIntegral) (hgφ : IntertwinesAlong φ.toRingHom g g') (hgψ : IntertwinesAlong
  ψ.toRingHom g g') (D : Divisor K F) : Divisor.correspondence φ ψ hφ hψ (g • D) = g •
  Divisor.correspondence φ ψ hφ hψ D