OAI/Analysis/KadisonKastler/ConstructedFiniteSpatial.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Spatial implementation using the constructed finite-factor estimate

  1. theorem OAI.KadisonKastler.constructed_complete_closeness_of_finiteFactor_equiv line 35

    Source documentation

    The concrete paired factor gives the required complete bound.

    theorem constructed_complete_closeness_of_finiteFactor_equiv
        (hM : Generator.IsII1Factor M.toStarSubalgebra)
        (hN : Generator.IsII1Factor N.toStarSubalgebra)
        (θ : Algebra M ≃⋆ₐ[ℂ] Algebra N) {δ : ℝ} (hδ : 0 ≤ δ)
        (hclose : ∀ x : Algebra M, ‖x.val - (θ x).val‖ ≤ δ * ‖x‖) :
        CompletelyBoundedBy (M.toStarSubalgebra.subtype.toLinearMap -
          (N.toStarSubalgebra.subtype.comp θ.toStarAlgHom).toAlgHom.toLinearMap)
          (1000000 * δ) := by
    …

    Mentions: OAI.Generator.IsII1Factor, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.CompletelyBoundedBy

  2. theorem OAI.KadisonKastler.constructed_finiteFactor_spatial_of_near_starEquiv line 50

    Source documentation

    A nearby finite-factor isomorphism is spatial, with no published amplification or commutant-distance assumption.

    theorem constructed_finiteFactor_spatial_of_near_starEquiv
        (hM : Generator.IsII1Factor M.toStarSubalgebra)
        (hN : Generator.IsII1Factor N.toStarSubalgebra)
        (θ : Algebra M ≃⋆ₐ[ℂ] Algebra N)
        {δ : ℝ} (hδ : 0 ≤ δ) (hsmall : δ < 1 / 4000000)
        (hclose : ∀ x : Algebra M,
          ‖x.val - (θ x).val‖ ≤ δ * ‖x‖) :
        ∃ u : unitary (H →L[ℂ] H), Conjugates u M N ∧
          ‖(u : H →L[ℂ] H) - 1‖ ≤ 4000000 * δ := by
    …

    Mentions: OAI.Generator.IsII1Factor, OAI.KadisonKastler.Algebra, OAI.KadisonKastler.Conjugates