OAI/Analysis/KadisonSimilarity/FreeProduct/FreeCornerApplication.lean

GitHub source file

3 declarations, 0 contain sorry, 0 declared as axioms

Apply the proved free-corner theorem using the chosen matrix frame, its containing half projection, and the actual L²-generated test algebras. All ordinary generation and support identities are derived here.

  1. def OAI.KadisonSimilarity.TracialCornerGeometry.smallFrameCompressionInput line 45

    Source documentation

    The elementary compression model on the actual half corner.

    def smallFrameCompressionInput (hτ : G.trace 1 = 1) : Prop :=
    …
  2. theorem OAI.KadisonSimilarity.TracialCornerGeometry.smallFrameCompressionInput_proved line 57

    Source documentation

    The constructed reduced-word model supplies the half-corner input.

    theorem smallFrameCompressionInput_proved (hτ : G.trace 1 = 1) :
        G.smallFrameCompressionInput A D Q s hτ := by
    …
  3. theorem OAI.KadisonSimilarity.TracialCornerGeometry.free_corner_from_smallFrame line 66

    Source documentation

    The free-corner estimate with the matrix frame and both generated algebras fixed by construction. The remaining premises are the local published word, spectral, comparison, and cyclic-implementation inputs.

    theorem free_corner_from_smallFrame
        (hgen : G.FactorsTraciallyGenerate A D) (hfaithful : Function.Injective G.vector)
        (hext : ∀ j, G.MatrixConjugationExtensionInput D (M.embedding j) A)
        (S : RealTracialSequence (G.baseGeometry D).trace)
        (hsize : Filter.Tendsto (fun j => (Fintype.card (I j) : ℝ)) Filter.atTop Filter.atTop)
        (hτ : G.trace 1 = 1) (hf : ScalarFree G.trace D A)
        (words : RicardXuWordDecompositionInput G A D)
        (creation : RicardXuCreationInput G A D)
        (support : TracialRightSupportInput (fun a => (G.trace a).re)
          (Q.frame.corner : P) A)
        (comparison : FiniteFactorProjectionComparison (fun a => (G.trace a).re))
        (published : PublishedDerivationInputs.{u,v} (CStarCorner (Q.frame.corner : P)
    …

    Mentions: OAI.KadisonSimilarity.RealTracialSequence, OAI.KadisonSimilarity.ScalarFree, OAI.KadisonSimilarity.RicardXuWordDecompositionInput, OAI.KadisonSimilarity.RicardXuCreationInput, OAI.KadisonSimilarity.TracialRightSupportInput, OAI.KadisonSimilarity.FiniteFactorProjectionComparison, OAI.KadisonSimilarity.CStarCorner