OAI/Analysis/FiniteFactor/Diffuse/OperatorMeanErgodic.lean
3 declarations, 0 contain sorry, 0 declared as axioms
- lemma
OAI.Nonhyperlinear.Diffuseness.cesaro_on_closedRangeline 11 - lemma
OAI.Nonhyperlinear.Diffuseness.cesaro_fixedline 32 - theorem
OAI.Nonhyperlinear.Diffuseness.cesaro_tendsto_fixedProjectionline 45Source 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