OAI/Analysis/KadisonKastler/RegularLocalizationNormal.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Bounded weak continuity of localization averages

The constant representation is a countable diagonal amplification in scalar Hilbert coordinates. Its bounded weak continuity therefore gives bounded weak continuity of the translated-cutoff sandwich. This permits finite packet compressions to be averaged before taking their limit.

  1. theorem OAI.KadisonKastler.regularConstantHom_tendsto_weak line 26

    Source documentation

    Bounded weak operator limits pass through the constant representation.

    theorem regularConstantHom_tendsto_weak {ι : Type*} {l : Filter ι}
        (T : ι → H →L[ℂ] H) (S : H →L[ℂ] H) (C : ℝ)
        (hC : ∀ᶠ i in l, ‖T i‖ ≤ C)
        (hT : ∀ x y : H, Tendsto (fun i => inner ℂ y (T i x)) l
          (𝓝 (inner ℂ y (S x))))
        (f g : RegularCoreHilbert H) :
        Tendsto (fun i => inner ℂ g (regularConstantHom (volume : Measure ℝ) (T i) f)) l
          (𝓝 (inner ℂ g (regularConstantHom (volume : Measure ℝ) S f))) := by
    …

    Mentions: OAI.KadisonKastler.RegularCoreHilbert, OAI.KadisonKastler.regularConstantHom

  2. theorem OAI.KadisonKastler.regularLocalizationAverage_tendsto_weak line 46

    Source documentation

    A localized Haar average preserves every bounded weak operator limit.

    theorem regularLocalizationAverage_tendsto_weak {ι : Type*} {l : Filter ι}
        (s : Set ℝ) (hs : MeasurableSet s) (hfinite : volume s ≠ ⊤)
        (T : ι → RegularCoreHilbert H →L[ℂ] RegularCoreHilbert H)
        (S : RegularCoreHilbert H →L[ℂ] RegularCoreHilbert H) (C : ℝ)
        (hC : ∀ᶠ i in l, ‖T i‖ ≤ C)
        (hT : ∀ x y, Tendsto (fun i => inner ℂ y (T i x)) l
          (𝓝 (inner ℂ y (S x))))
        (f g : RegularCoreHilbert H) :
        Tendsto (fun i => inner ℂ g (regularLocalizationAverage s hs hfinite (T i) f)) l
          (𝓝 (inner ℂ g (regularLocalizationAverage s hs hfinite S f))) := by
    …

    Mentions: OAI.KadisonKastler.RegularCoreHilbert, OAI.KadisonKastler.regularLocalizationAverage