Blowup Ten Thirds Source #
Space-time integrability of the rescaled velocity at exponent 10/3.
theorem
ESS.blowupRescale_component_tenThirds_uniform_top
(u : CKN.Foundation.Parabolic.ParabolicPoint → CKN.Foundation.Parabolic.Vec3)
(Du : CKN.Foundation.Parabolic.ParabolicPoint → Fin 3 → CKN.Foundation.Parabolic.Vec3)
(p : CKN.Foundation.Parabolic.ParabolicPoint → ℝ)
(x₀ : CKN.Foundation.Parabolic.Vec3)
(t₀ r : ℝ)
(hr : 0 < r)
(R a : ℝ)
(hR : 0 < R)
(hsol :
CKN.IsSuitableWeakSolutionIntegrable (CKN.euclideanBall 0 (R + 1)) (Set.Ioo (a - 2) 0) 3
(parabolicRescaleVelocity x₀ t₀ r u) (parabolicRescaleGradient x₀ t₀ r Du) (parabolicRescalePressure x₀ t₀ r p) 0)
(hdom : CKN.Foundation.Parabolic.vec3Ball 0 R ×ˢ Set.Ioo a 0 ⊆ blowupDomain x₀ t₀ r)
(htime : Set.Ioo a 0 ⊆ CKN.rescaledTime r t₀ (Set.Ioo (-1) 0))
(hu : MeasureTheory.AEStronglyMeasurable (goodPointDomain.indicator u) MeasureTheory.volume)
(M : ENNReal)
(hM : M < ⊤)
(hsource :
∀ᵐ (s : ℝ) ∂MeasureTheory.volume.restrict (Set.Ioo (-1) 0), MeasureTheory.AEStronglyMeasurable (fun (x : CKN.Foundation.Parabolic.Vec3) => goodPointDomain.indicator u (x, s))
MeasureTheory.volume ∧ MeasureTheory.eLpNorm
(fun (x : CKN.Foundation.Parabolic.Vec3) =>
CKN.Foundation.Parabolic.vec3EuclideanNorm (goodPointDomain.indicator u (x, s)))
3 MeasureTheory.volume ≤ M)
(Cg : ℝ)
(hgradInt :
MeasureTheory.IntegrableOn
(fun (z : CKN.Foundation.Parabolic.ParabolicPoint) =>
CKN.spatialGradientSq (parabolicRescaleVelocity x₀ t₀ r u) (parabolicRescaleGradient x₀ t₀ r Du) z)
(CKN.Foundation.Parabolic.vec3Ball 0 R ×ˢ Set.Ioo a 0) MeasureTheory.volume)
(hgradBound :
∫ (z : CKN.Foundation.Parabolic.ParabolicPoint) in CKN.Foundation.Parabolic.vec3Ball 0 R ×ˢ Set.Ioo a 0, CKN.spatialGradientSq (parabolicRescaleVelocity x₀ t₀ r u) (parabolicRescaleGradient x₀ t₀ r Du) z ≤ Cg)
(i : Fin 3)
:
blowupTenThirdsBound M Cg R a < ⊤ ∧ MeasureTheory.MemLp (fun (z : CKN.Foundation.Parabolic.ParabolicPoint) => parabolicRescaleVelocity x₀ t₀ r u z i)
(ENNReal.ofReal (10 / 3)) (MeasureTheory.volume.restrict (CKN.Foundation.Parabolic.vec3Ball 0 R ×ˢ Set.Ioo a 0)) ∧ MeasureTheory.eLpNorm (fun (z : CKN.Foundation.Parabolic.ParabolicPoint) => parabolicRescaleVelocity x₀ t₀ r u z i)
(ENNReal.ofReal (10 / 3))
(MeasureTheory.volume.restrict (CKN.Foundation.Parabolic.vec3Ball 0 R ×ˢ Set.Ioo a 0)) ^ (10 / 3) ≤ blowupTenThirdsBound M Cg R a
The finite-past interpolation estimate holds on the entire open terminal-time cylinder for one suitable rescaling.