OAI/Analysis/KadisonKastler/SpatialTensorModulus.lean

GitHub source file

3 declarations, 0 contain sorry, 0 declared as axioms

Quantitative removal of a fixed auxiliary factor

  1. def OAI.KadisonKastler.spatialDescentTolerance line 22

    Source documentation

    The auxiliary tolerance used before choosing any representation or algebra.

    def spatialDescentTolerance (ε : ℝ) : ℝ := min (ε / 512) (1 / 4000)
  2. theorem OAI.KadisonKastler.spatialDescentTolerance_pos line 24
  3. theorem OAI.KadisonKastler.nearConjugacy_of_spatial_product line 31

    Source documentation

    A sufficiently small spatial-product conjugacy gives a conjugacy of the original pair, with the prescribed strict displacement.

    theorem nearConjugacy_of_spatial_product
        {M N : VonNeumannAlgebra H} (D : VonNeumannAlgebra K)
        (hCorrection : PublishedMultiplicationCorrection M)
        (hCommutant : PublishedBlockCommutantApproximation (Algebra M) H)
        (ξ : K) (hξ : ‖ξ‖ = 1) {ε : ℝ} (hε : 0 < ε)
        (hgap : kkDistance M N < 1 / 4)
        (h : NearConjugacy (spatialProductAlgebra M D) (spatialProductAlgebra N D)
          (spatialDescentTolerance ε)) : NearConjugacy M N ε := by
    …

    Mentions: OAI.KadisonKastler.PublishedMultiplicationCorrection, OAI.KadisonKastler.PublishedBlockCommutantApproximation, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.kkDistance, OAI.KadisonKastler.NearConjugacy, OAI.KadisonKastler.spatialProductAlgebra, OAI.KadisonKastler.spatialDescentTolerance