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LeanPool.CaffarelliKohnNirenberg.Leray.StabilityEnergyRhsConvergence

Stability Energy Rhs Convergence #

Supporting estimates for the Navier–Stokes development.

theorem CKN.stability_energy_rhs_tendsto {Ω Ω' : Set Foundation.Parabolic.Vec3} {I J : Set ℝ} {q : ℝ} (u : ℕ → Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3) (Du : ℕ → Foundation.Parabolic.ParabolicPoint → Fin 3 → Foundation.Parabolic.Vec3) (p : ℕ → Foundation.Parabolic.ParabolicPoint → ℝ) (v : Foundation.Parabolic.ParabolicPoint → Foundation.Parabolic.Vec3) (Dv : Foundation.Parabolic.ParabolicPoint → Fin 3 → Foundation.Parabolic.Vec3) (r : Foundation.Parabolic.ParabolicPoint → ℝ) (hsol : ∀ (n : ℕ), IsSuitableWeakSolution Ω I q (u n) (Du n) (p n) 0) (hdata : IsSuitableWeakSolutionData Ω I q v Dv r 0) (hbox : localBox Ω I Ω' J) (huConv : Filter.Tendsto (fun (n : ℕ) => MeasureTheory.eLpNorm (u n - v) 3 (MeasureTheory.volume.restrict (spaceTimeSet Ω' J))) Filter.atTop (nhds 0)) (hpConv : Filter.Tendsto (fun (n : ℕ) => MeasureTheory.eLpNorm (p n - r) (3 / 2) (MeasureTheory.volume.restrict (spaceTimeSet Ω' J))) Filter.atTop (nhds 0)) (ψ : Foundation.Parabolic.Vec3 × ℝ → ℝ) (hψ : ψ ∈ spaceTimeTestFunction Ω I) :
Filter.Tendsto (fun (n : ℕ) => ∫ (z : Foundation.Parabolic.ParabolicPoint) in spaceTimeSet Ω' J, Foundation.Parabolic.vec3EuclideanNorm (u n z) ^ 2 * (timePartial ψ z + ∑ i : Fin 3, spatialSecondPartial ψ i i z) + (Foundation.Parabolic.vec3EuclideanNorm (u n z) ^ 2 + 2 * p n z) * ∑ i : Fin 3, u n z i * spatialPartial ψ i z + (2 * ∑ i : Fin 3, 0 z i * u n z i) * ψ z) Filter.atTop (nhds (∫ (z : Foundation.Parabolic.ParabolicPoint) in spaceTimeSet Ω' J, Foundation.Parabolic.vec3EuclideanNorm (v z) ^ 2 * (timePartial ψ z + ∑ i : Fin 3, spatialSecondPartial ψ i i z) + (Foundation.Parabolic.vec3EuclideanNorm (v z) ^ 2 + 2 * r z) * ∑ i : Fin 3, v z i * spatialPartial ψ i z + (2 * ∑ i : Fin 3, 0 z i * v z i) * ψ z))

The right side of the zero-force local energy inequality converges on each local box under the strong velocity and pressure limits.