Magnitude conjecture

MagnitudeConjecture.Algebra.RightModuleStandardFormMeshHomCoordinateFactor

Coordinate factorization for the standard mesh-simple resolution #

@[instance_reducible]
def MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.standardFormMeshHomCoordinateFactorQuiver {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.standardFormMeshHomCoordinateFactorArrowFintype {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_hom_coordinate_factor {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) :
      ∃ (b : S.standardFormRightMeshData.contravariantRepresentableFiniteModule hP ↑z ⟶ S.standardFormRightMeshData.contravariantRepresentableFiniteModule hP x), ∀ (a : MeshCategory.RightMeshData.IncomingArrow ↑z), CategoryTheory.CategoryStruct.comp (S.standardFormRightMeshData.incomingSummandInclusionFinite hP (↑z) a) (CategoryTheory.CategoryStruct.comp (S.standardFormRightMeshData.incomingMapFinite hP ↑z) b) = CategoryTheory.CategoryStruct.comp (S.standardFormRightMeshData.incomingSummandInclusionFinite hP (↑z) a) h

      Construct the factor morphism and verify its equation on every incoming biproduct coordinate.