OAI/Analysis/KadisonKastler/ModularResolventRange.lean

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The bounded Tomita resolvent takes commutant vectors into the algebra

The real Radon--Nikodym equation identifies the orthogonal projection of a commutant vector into the closed Tomita graph. Its first coordinate is the already constructed bounded resolvent.

  1. theorem OAI.KadisonKastler.rescaledGraphProjection_of_modular_pairing line 21
  2. theorem OAI.KadisonKastler.graphResolvent_commutant_selfAdjoint line 68

    Source documentation

    A self-adjoint commutant vector has an actual bounded algebra representative under the graph resolvent. No modular normalization is used.

    theorem graphResolvent_commutant_selfAdjoint (J : H ≃ₗᵢ⋆[ℂ] H) (Ω : H)
        (b : Algebra M.commutant) (hb : IsSelfAdjoint b) :
        ∃ a : Algebra M, IsSelfAdjoint a ∧ ‖a‖ ≤ 1 + ‖b‖ ∧
          graphResolvent M J Ω 1 (b.val Ω) = a.val Ω := by
    …

    Mentions: OAI.KadisonKastler.Algebra, OAI.KadisonKastler.graphResolvent