From the actual Amnr spatial word calculus to the Appendix C predicates.
theorem
AVenhance.Infra.Section5.slowFactor_word_ofFn_eq_spatialJet
{f : Homogenization.Vec 2 → ℝ}
(hf : ContDiff ℝ (↑⊤) f)
(n : ℕ)
(w : Fin n → Fin 2)
:
theorem
AVenhance.Infra.Section5.slowFactor_spatialJet_realCast
{f : Homogenization.Vec 2 → ℝ}
(hf : ContDiff ℝ (↑⊤) f)
(n : ℕ)
(w : Fin n → Fin 2)
(x : Homogenization.Vec 2)
:
theorem
AVenhance.Infra.Section5.slowFactor_hasCoordinateAnalyticL2Bounds_comp
(X : Ergodic.PeriodicVolumePreservingDiffeomorphism 2)
{f : Homogenization.Vec 2 → ℝ}
(hf : ContDiff ℝ (↑⊤) f)
(hper : Ergodic.IsZPeriodic f)
{F L CX R : ℝ}
(hF : 0 ≤ F)
(hL : 0 < L)
(hCX : 0 < CX)
(hR : 0 < R)
(hb :
∀ (w : List (Fin 2)),
MeasureTheory.eLpNorm (Section4.amnrSpaceWord w f) 2 (MeasureTheory.volume.restrict (Torus.unitCell 2)) ≤ ENNReal.ofReal (F * ↑w.length.factorial * L ^ w.length))
(hX :
∀ (n : ℕ) (w : Fin n → Fin 2),
0 < n → ∀ (x : Homogenization.Vec 2) (j : Fin 2), |Ergodic.spatialJet n X.toFun w x j| ≤ CX * ↑n.factorial * R ^ n)
:
Ergodic.HasCoordinateAnalyticL2Bounds (fun (x : Homogenization.Vec 2) => ↑(f (X.toFun x))) F
(L⁻¹ / (R * (L⁻¹ + 2 * CX)))
Full mixed bounds, rather than the weaker pure-coordinate predicate, feed the sharp averaged composition theorem.