OAI/Algebra/Finitistic/Iteration/IntegerIterateAmplitude.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

  1. abbrev OAI.DerivedBar.IterateSupport.resolvedModel line 17
  2. theorem OAI.DerivedBar.IterateSupport.tensor_exact_above line 23

    Source documentation

    A bounded input remains cohomologically bounded after actual derived tensor. The input is resolved by its genuine projective bar total.

    theorem tensor_exact_above (Z : ChainComplex (ModuleCat.{u} D) ℕ) (m : ℕ)
        (hZ : ∀ i, m < i → Z.ExactAt i) (n : ℕ) (hn : m+g+2 < n) :
        ((tensorTotalFunctor k D X).obj Z).ExactAt n := by
    …

    Mentions: OAI.DerivedBar.tensorTotalFunctor

  3. theorem OAI.DerivedBar.IterateSupport.resolvedModel_exact_above line 37

    Source documentation

    The actual finite iteration has an explicit finite homological support bound. This bound has a two-degree allowance per step; no optimal upper bound is claimed.

    theorem resolvedModel_exact_above (r n : ℕ) (hn : r*(g+2) < n) :
        (resolvedModel k D X N r).ExactAt n := by
    …

    Mentions: OAI.DerivedBar.IterateSupport.resolvedModel

  4. def OAI.DerivedBar.IterateSupport.resolvedModelIso line 48
  5. theorem OAI.DerivedBar.IterateSupport.isGE_bound line 57

    Source documentation

    Actual derived tensor iterates have finite lower cohomological support over any ring with the supplied genuine global projective-dimension bound.

    theorem isGE_bound (r : ℕ) : (object k D X N r).IsGE (-((r*(g+2) : ℕ) : ℤ)) := by
    …

    Mentions: OAI.DerivedBar.IterateSupport.object

  6. theorem OAI.DerivedBar.IterateSupport.bounded_amplitude line 71