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LeanPool.CaffarelliKohnNirenberg.Core.Step4.PressureGradientOriginASlotFinal

Pressure Gradient Origin ASlot Final #

Part of the Caffarelli–Kohn–Nirenberg partial regularity proof.

theorem CKN.Core.Step4.theoremA_aSlot_integral_instances (q τ C_CZ R₀ R₁ ε : ℝ) (KU KD : ENNReal) :
5 / 2 < q → 25 / 3 ≤ τ → τ ≤ 25 → 0 ≤ C_CZ → originASlotCorrectionThreshold originASlotM2Threshold q ≤ C_CZ → τ = 25 / 3 ∧ R₀ = 11 / 16 ∧ R₁ = 43 / 64 ∨ τ = 25 ∧ R₀ = 5 / 8 ∧ R₁ = 19 / 32 → 0 < R₁ → R₁ < R₀ → R₀ < 3 / 4 → 0 ≤ ε → KU < ⊤ → KD < ⊤ → ∀ {Ω : Set Foundation.Parabolic.Vec3} {I : Set ℝ} {u : Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3} {Du : Foundation.Parabolic.ParabolicPoint → Fin 3 → Foundation.Parabolic.Vec3} {p : Foundation.Parabolic.ParabolicPoint → ℝ} {f : Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3}, IsSuitableWeakSolutionIntegrable Ω I q u Du p f → closure (Foundation.Parabolic.parabolicCylinder 0 0 1) ⊆ spaceTimeSet Ω I → (∀ (i : Fin 3), Foundation.Parabolic.Morrey.morreyNorm 3 τ ((Foundation.Parabolic.parabolicCylinder 0 0 R₀).indicator fun (z : Foundation.Parabolic.ParabolicPoint) => u z i) ≤ KU) → (∀ (i j : Fin 3), Foundation.Parabolic.Morrey.morreyNorm 2 (25 / 8) ((Foundation.Parabolic.parabolicCylinder 0 0 R₀).indicator fun (z : Foundation.Parabolic.ParabolicPoint) => Du z i j) ≤ KD) → ∫⁻ (z : Foundation.Parabolic.ParabolicPoint) in Foundation.Parabolic.parabolicCylinder 0 0 1, ENNReal.ofReal (Foundation.Parabolic.vec3EuclideanNorm (u z)) ^ 3 + ENNReal.ofReal |p z| ^ (3 / 2) + ENNReal.ofReal (Foundation.Parabolic.vec3EuclideanNorm (f z)) ^ q ≤ ENNReal.ofReal ε → ∀ (Dp : Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3), Measurable Dp → (∀ᵐ (s : ℝ) ∂MeasureTheory.volume.restrict I, ∀ (i : Fin 3), MeasureTheory.LocallyIntegrableOn (fun (y : Foundation.Parabolic.Vec3) => Dp (y, s) i) (Foundation.Parabolic.vec3Ball 0 R₁) MeasureTheory.volume ∧ HasWeakPartialDerivOn (Foundation.Parabolic.vec3Ball 0 R₁) i (fun (y : Vec 3) => p (y, s)) fun (y : Vec 3) => Dp (y, s) i) → ∀ (i : Fin 3), ∀ z ∈ Foundation.Parabolic.parabolicCylinder 0 0 (3 / 4), ∀ (r : ℝ), 0 < r → r ≤ R₁ → ∫⁻ (s : ℝ) in Set.Ioc (z.2 - r ^ 2) z.2 ∩ Set.Ioc (-R₁ ^ 2) 0, MeasureTheory.eLpNorm (fun (y : Foundation.Parabolic.Vec3) => Dp (y, s) i) (ENNReal.ofReal (6 / 5)) (MeasureTheory.volume.restrict (Foundation.Parabolic.vec3Ball z.1 r ∩ Foundation.Parabolic.vec3Ball 0 R₁)) ^ (6 / 5) ≤ originKPAffineASlot q C_CZ ε KU KD * ENNReal.ofReal (r ^ (5 * (1 - 6 / 5 / min (1 / τ + 8 / 25)⁻¹ q)))

The pressure-gradient A-slot estimate at the two prescribed instances.