fpvandoorn/carleson
Source indexedtheorem · leanprover/lean4:v4.32.0
linearized_metric_carleson
Carleson.MetricCarleson.Linearized · Carleson/MetricCarleson/Linearized.lean:109 to 128
Source documentation
Theorem 1.1.2
Exact Lean statement
theorem linearized_metric_carleson [IsCancellative X (defaultτ a)]
(hq : q ∈ Ioc 1 2) (hqq' : q.HolderConjugate q') (mF : MeasurableSet F) (mG : MeasurableSet G)
(mf : Measurable f) (nf : (‖f ·‖) ≤ F.indicator 1)
(hT : ∀ θ : Θ X, HasBoundedStrongType (linearizedNontangentialOperator Q θ K · ·)
2 2 volume volume (C_Ts a)) :
∫⁻ x in G, linearizedCarlesonOperator Q K f x ≤
C1_0_2 a q * volume G ^ (q' : ℝ)⁻¹ * volume F ^ (q : ℝ)⁻¹Complete declaration
Lean source
Full Lean sourceLean 4
theorem linearized_metric_carleson [IsCancellative X (defaultτ a)] (hq : q ∈ Ioc 1 2) (hqq' : q.HolderConjugate q') (mF : MeasurableSet F) (mG : MeasurableSet G) (mf : Measurable f) (nf : (‖f ·‖) ≤ F.indicator 1) (hT : ∀ θ : Θ X, HasBoundedStrongType (linearizedNontangentialOperator Q θ K · ·) 2 2 volume volume (C_Ts a)) : ∫⁻ x in G, linearizedCarlesonOperator Q K f x ≤ C1_0_2 a q * volume G ^ (q' : ℝ)⁻¹ * volume F ^ (q : ℝ)⁻¹ := by have nf' : (‖f ·‖) ≤ 1 := nf.trans (indicator_le_self' (by simp)) calc _ = ∫⁻ x, ⨆ n, G.indicator (lcoConvergent K Q f n) x := by rw [← lintegral_indicator mG]; congr! 2 with x rw [← iSup_apply, iSup_indicator rfl monotone_lcoConvergent monotone_const, iUnion_const, iSup_lcoConvergent] _ = ⨆ n, ∫⁻ x, G.indicator (lcoConvergent K Q f n) x := lintegral_iSup (fun _ ↦ (measurable_lcoConvergent mf nf').indicator mG) (fun _ _ hl ↦ indicator_mono (monotone_lcoConvergent hl)) _ ≤ _ := by refine iSup_le fun n ↦ ?_ unfold lcoConvergent; rw [lintegral_indicator mG] exact R_truncation hq hqq' mF mG mf nf rfl hT