Magnitude conjecture

MagnitudeConjecture.Algebra.RightModuleStandardIntervalPacking

Separated packing and equality for actual standard-form interval surpluses #

theorem MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.intervalPackingBaseFinite {k A : Type u} [Field k] [IsAlgClosed k] [Ring A] [Algebra k A] [FiniteDimensional k A] [IsNoetherianRing Aᵐᵒᵖ] (S : FiniteIndecomposableSkeleton k A) :
FiniteDimensional k (S.standardFormAlgebra ⋯)
theorem MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.intervalPackingAlgebraFinite {k A : Type u} [Field k] [IsAlgClosed k] [Ring A] [Algebra k A] [FiniteDimensional k A] [IsNoetherianRing Aᵐᵒᵖ] (S : FiniteIndecomposableSkeleton k A) (m : ℕ) :
FiniteDimensional k (S.standardFormIntervalAlgebra m)
theorem MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.intervalPackingAlgebraNoetherian {k A : Type u} [Field k] [IsAlgClosed k] [Ring A] [Algebra k A] [FiniteDimensional k A] [IsNoetherianRing Aᵐᵒᵖ] (S : FiniteIndecomposableSkeleton k A) (m : ℕ) :
IsNoetherianRing (S.standardFormIntervalAlgebra m)ᵐᵒᵖ

Separated copies of the actual small interval cannot have greater surplus than the ambient interval containing them.

theorem MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.standardFormInterval_surplus_le_length_mul {k A : Type u} [Field k] [IsAlgClosed k] [Ring A] [Algebra k A] [FiniteDimensional k A] [IsNoetherianRing Aᵐᵒᵖ] (S : FiniteIndecomposableSkeleton k A) (r : ℕ) :

Packing and the uniform interval error bound give the manuscript's upper surplus bound.

theorem MagnitudeConjecture.RightModule.FiniteIndecomposableSkeleton.standardFormInterval_surplus_eq_zero_of_ambient_eq_zero {k A : Type u} [Field k] [IsAlgClosed k] [Ring A] [Algebra k A] [FiniteDimensional k A] [IsNoetherianRing Aᵐᵒᵖ] (S : FiniteIndecomposableSkeleton k A) (hz : S.ambientARSurplus = 0) (r : ℕ) :

At zero ambient surplus, every actual finite interval has zero surplus.