Blowup Suitable Integrable #
Integrability conditions needed for suitability of the rescaled fields.
theorem
ESS.blowupRescale_eventually_suitableIntegrable_outer
(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)
(hSuitable : CKN.IsSuitableWeakSolution (CKN.Foundation.Parabolic.vec3Ball 0 (3 / 4)) (Set.Ioo (-1) 0) 3 u Du p 0)
(x₀ : CKN.Foundation.Parabolic.Vec3)
(t₀ : ℝ)
(r : ℕ → ℝ)
(hx₀ : x₀ ∈ closure (CKN.Foundation.Parabolic.vec3Ball 0 (1 / 2)))
(ht₀ : t₀ ∈ Set.Icc (-(1 / 4)) 0)
(hr : ∀ (k : ℕ), 0 < r k)
(hr0 : Filter.Tendsto r Filter.atTop (nhds 0))
(R a : ℝ)
(hR : 0 < R)
(ha : a < 0)
:
∀ᶠ (k : ℕ) in Filter.atTop, CKN.IsSuitableWeakSolutionIntegrable (CKN.euclideanBall 0 (R + 1)) (Set.Ioo (a - 2) 0) 3
(parabolicRescaleVelocity x₀ t₀ (r k) u) (parabolicRescaleGradient x₀ t₀ (r k) Du)
(parabolicRescalePressure x₀ t₀ (r k) p) 0
The rescaled solutions satisfy the integrable suitable class on each fixed larger past cylinder once the scale is small.