OAI/Analysis/KadisonKastler/ConjugateFactor.lean

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8 declarations, 0 contain sorry, 0 declared as axioms

Factor transport and composition for a conjugated neighbor

  1. def OAI.KadisonKastler.unitaryConjugateHom line 18

    Source documentation

    The inner automorphism restricted to the original algebra.

    def unitaryConjugateHom (w : unitary (H →L[ℂ] H)) (N : VonNeumannAlgebra H) :
        Algebra N →⋆ₐ[ℂ] Algebra (unitaryConjugateAlgebra w N) :=
    …

    Mentions: OAI.KadisonKastler.Algebra, OAI.KadisonKastler.unitaryConjugateAlgebra

  2. theorem OAI.KadisonKastler.unitaryConjugateHom_apply line 25
  3. theorem OAI.KadisonKastler.unitaryConjugateHom_bijective line 29
  4. def OAI.KadisonKastler.unitaryConjugateEquiv line 41

    Source documentation

    Exact star-algebra equivalence with the conjugated concrete algebra.

    def unitaryConjugateEquiv (w : unitary (H →L[ℂ] H)) (N : VonNeumannAlgebra H) :
        Algebra N ≃⋆ₐ[ℂ] Algebra (unitaryConjugateAlgebra w N) :=
    …

    Mentions: OAI.KadisonKastler.Algebra, OAI.KadisonKastler.unitaryConjugateAlgebra

  5. theorem OAI.KadisonKastler.unitaryConjugateEquiv_apply line 46
  6. theorem OAI.KadisonKastler.unitaryConjugateAlgebra_isII1 line 51

    Source documentation

    The finite diffuse factor predicate is preserved by unitary conjugation.

    theorem unitaryConjugateAlgebra_isII1 (w : unitary (H →L[ℂ] H))
        {N : VonNeumannAlgebra H} (hN : Generator.IsII1Factor N.toStarSubalgebra) :
        Generator.IsII1Factor (unitaryConjugateAlgebra w N).toStarSubalgebra :=
    …

    Mentions: OAI.Generator.IsII1Factor, OAI.KadisonKastler.unitaryConjugateAlgebra

  7. theorem OAI.KadisonKastler.conjugates_of_conjugated_neighbor line 58

    Source documentation

    Return from the moved neighbor to the original one by composing unitaries.

    theorem conjugates_of_conjugated_neighbor {M N : VonNeumannAlgebra H}
        (w v : unitary (H →L[ℂ] H))
        (hv : Conjugates v M (unitaryConjugateAlgebra (star w) N)) :
        Conjugates (w * v) M N := by
    …

    Mentions: OAI.KadisonKastler.Conjugates, OAI.KadisonKastler.unitaryConjugateAlgebra

  8. theorem OAI.KadisonKastler.conjugated_neighbor_displacement_le line 67

    Source documentation

    The final displacement includes the initial movement of the neighbor.

    theorem conjugated_neighbor_displacement_le (w v : unitary (H →L[ℂ] H)) :
        ‖((w * v : unitary (H →L[ℂ] H)) : H →L[ℂ] H) - 1‖ ≤
          ‖(w : H →L[ℂ] H) - 1‖ + ‖(v : H →L[ℂ] H) - 1‖ :=
    …