OAI/Analysis/KadisonKastler/MultiplicationCorrectionTransport.lean

GitHub source file

8 declarations, 0 contain sorry, 0 declared as axioms

Transport of multiplication correction through a star-algebra model

  1. def OAI.KadisonKastler.transportBilinear line 15
  2. theorem OAI.KadisonKastler.transportBilinear_apply line 23
  3. theorem OAI.KadisonKastler.transportBilinear_assoc line 28
  4. theorem OAI.KadisonKastler.transportBilinear_star line 36
  5. theorem OAI.KadisonKastler.bilinearProduct_transport_defect line 43
  6. theorem OAI.KadisonKastler.starAlgEquiv_matrix_norm line 54
  7. theorem OAI.KadisonKastler.transportBilinear_defect_bound line 59
  8. theorem OAI.KadisonKastler.multiplication_correction_of_operator_model line 72

    Source documentation

    An operator-algebra model transfers the constructed correction, without any dependence on the multiplicity of the original representation.

    theorem multiplication_correction_of_operator_model
        {H : Type*} [NormedAddCommGroup H] [InnerProductSpace ℂ H] [CompleteSpace H] [Nontrivial H]
        (e : A ≃⋆ₐ[ℂ] (H →L[ℂ] H))
        (m : A →ₗ[ℂ] A →ₗ[ℂ] A)
        (hm : ∀ x y z, m (m x y) z = m x (m y z))
        (hms : ∀ x y, star (m x y) = m (star y) (star x))
        {q : ℝ} (hq : 0 ≤ q) (hq1 : q ≤ 1/11)
        (hb : HaagerupBound (m - LinearMap.mul ℂ A) q) :
        ∃ L : A ≃ₗ[ℂ] A, (∀ x y, L (m x y) = L x * L y) ∧
          (∀ x, L (star x) = star (L x)) ∧
          CompletelyBoundedBy (L.toLinearMap - LinearMap.id) (4 * q) := by
    …

    Mentions: OAI.KadisonKastler.HaagerupBound, OAI.KadisonKastler.CompletelyBoundedBy