OAI/Analysis/OperatorAlgebra/GNSHilbertStructure.lean

GitHub source file

5 declarations, 0 contain sorry, 0 declared as axioms

Bundled GNS spaces keep the canonical Hilbert structures explicit when specializing to concrete represented corners.

  1. def OAI.WeakPureInfiniteness.gnsHilbert line 16

    Source documentation

    The usual GNS Hilbert space, with its existing canonical structures.

    def gnsHilbert (φ : A →ₚ[ℂ] ℂ) : ComplexHilbert where
    …

    Mentions: OAI.WeakPureInfiniteness.ComplexHilbert

  2. def OAI.WeakPureInfiniteness.cyclicBundledGNSIsometry line 22

    Source documentation

    The cyclic isometry with a bundled source Hilbert space.

    def cyclicBundledGNSIsometry (φ : A →ₚ[ℂ] ℂ) (π : A →⋆ₐ[ℂ] (H →L[ℂ] H))
        (ξ : H) (hφ : ∀ a, φ a = inner ℂ ξ (π a ξ)) :
        gnsHilbert φ →ₗᵢ[ℂ] H := cyclicGNSIsometry φ π ξ hφ

    Mentions: OAI.WeakPureInfiniteness.gnsHilbert, OAI.WeakPureInfiniteness.cyclicGNSIsometry

  3. lemma OAI.WeakPureInfiniteness.cyclicBundledGNSIsometry_vector line 26
  4. def OAI.WeakPureInfiniteness.normalizedCornerGNSInclusion line 35

    Source documentation

    A normalized corner vector realizes the state on its GNS space.

    def normalizedCornerGNSInclusion (V : K →ₗᵢ[ℂ] H) (φ : A →ₚ[ℂ] ℂ)
        (π : A →⋆ₐ[ℂ] (K →L[ℂ] K)) (z : H)
        (hφ : ∀ a, φ a = inner ℂ
          (((‖z‖⁻¹ : ℝ) : ℂ) • V.toContinuousLinearMap.adjoint z)
          (π a (((‖z‖⁻¹ : ℝ) : ℂ) • V.toContinuousLinearMap.adjoint z))) :
        gnsHilbert φ →ₗᵢ[ℂ] H :=
    …

    Mentions: OAI.WeakPureInfiniteness.gnsHilbert

  5. lemma OAI.WeakPureInfiniteness.normalizedCornerGNSInclusion_vector line 44