Yoneda lifting for the standard-form mesh resolution #
The reflected raw relation is lifted through mesh exactness. This final stage is kept separate from the expensive Yoneda calculation.
@[instance_reducible]
def
MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.standardFormMeshYonedaLiftQuiver
{k A : Type u}
[Field k]
[Ring A]
[Algebra k A]
[FiniteDimensional k A]
[IsNoetherianRing Aᵐᵒᵖ]
(S : FiniteIndecomposableSkeleton k A)
:
Quiver (Fin S.n)
Instances For
@[instance_reducible]
noncomputable def
MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.standardFormMeshYonedaLiftArrowFintype
{k A : Type u}
[Field k]
[Ring A]
[Algebra k A]
[FiniteDimensional k A]
[IsNoetherianRing Aᵐᵒᵖ]
(S : FiniteIndecomposableSkeleton k A)
(x y : Fin S.n)
:
Fintype (x ⟶ y)
Instances For
theorem
MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.standardFormSimpleResolution_yoneda_lift
{k A : Type u}
[Field k]
[IsAlgClosed k]
[Ring A]
[Algebra k A]
[FiniteDimensional k A]
[IsNoetherianRing Aᵐᵒᵖ]
(S : FiniteIndecomposableSkeleton k A)
(hP : S.standardFormRightMeshData.FiniteContravariantRepresentables)
(z : { z : Fin S.n // z ∉ S.standardFormProjectiveSet })
(x : Fin S.n)
(h :
S.standardFormRightMeshData.incomingCoefficientFiniteModule hP ↑z ⟶ S.standardFormRightMeshData.contravariantRepresentableFiniteModule hP x)
(hh : CategoryTheory.CategoryStruct.comp (S.standardFormRightMeshData.translationMapFinite hP z) h = 0)
:
∃ (t : MeshCategory.obj S.standardFormRightMeshData ↑z ⟶ MeshCategory.obj S.standardFormRightMeshData x),
∀ (a : MeshCategory.RightMeshData.IncomingArrow ↑z),
(S.standardFormSimpleResolutionYonedaCoefficient hP z x h a).hom = CategoryTheory.CategoryStruct.comp (S.standardFormRightMeshData.incomingArrowHom a) t
A morphism out of the incoming coefficient module which kills the translation map is induced by a single morphism in the mesh category.