OAI/Analysis/FiniteFactor/Diffuse/OperatorMeanErgodic.lean

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3 declarations, 0 contain sorry, 0 declared as axioms

  1. lemma OAI.Nonhyperlinear.Diffuseness.cesaro_on_closedRange line 11
  2. lemma OAI.Nonhyperlinear.Diffuseness.cesaro_fixed line 32
  3. theorem OAI.Nonhyperlinear.Diffuseness.cesaro_tendsto_fixedProjection line 45

    Source documentation

    The Hilbert mean ergodic theorem for a selfadjoint contraction, proved using telescoping on the dense range and the fixed-space orthogonal projection.

    theorem cesaro_tendsto_fixedProjection (S : H →L[ℂ] H)
        (hS : ‖S‖≤1) (hstar : star S=S) (x : H) :
        Tendsto (fun n=>cesaro S n x) atTop (𝓝 ((1-S).ker.starProjection x)) := by
    …

    Mentions: OAI.Nonhyperlinear.Diffuseness.cesaro