OAI/Analysis/FiniteFactor/CrossedProduct/EventPositive.lean
1 declarations, 0 contain sorry, 0 declared as axioms
- theorem
OAI.FiniteFactor.sourceProjectionEvent_eventually_positiveline 14Source documentation
The actual source E_j has an eventual fixed positive lower bound for any nontrivial invariant projection of the original algebra. The threshold may depend on p; the positive lower bound does not.
theorem sourceProjectionEvent_eventually_positive (θ : SourceCoordinate → ℝ) (hθ : SourceAngles θ) (hr : SourceRationalIndependent θ) {p : SourceHilbert SourceCoordinate →L[ℂ] SourceHilbert SourceCoordinate} (hp : p ∈ sourceAlgebra θ) (hproj : IsStarProjection p) (hp0 : p ≠ 0) (hp1 : p ≠ 1) (hinv : (1-p)*sourceOperator θ sourceLogWeight hθ.nonneg sourceLogWeight_nonneg*p = 0) : ∀ᶠ j : ℕ in atTop, Real.exp (-82)/2 ≤ (sourceBiasedLaw j).real (sourceProjectionEvent p j) := by …Mentions: OAI.FiniteFactor.SourceCoordinate, OAI.FiniteFactor.SourceAngles, OAI.FiniteFactor.SourceRationalIndependent, OAI.FiniteFactor.SourceHilbert, OAI.FiniteFactor.sourceAlgebra, OAI.FiniteFactor.sourceOperator, OAI.FiniteFactor.sourceLogWeight, OAI.FiniteFactor.sourceLogWeight_nonneg, OAI.FiniteFactor.sourceBiasedLaw, OAI.FiniteFactor.sourceProjectionEvent