Documentation

LeanPool.NavierStokesAndEuler.Euler.WeightedForcingAlgebra

Related estimates used together by the same construction modules.

Exact triangle inequalities for the actual finite Hilbert forcing families.

Triangle inequality for the root-of-sum-of-squares norm of actual finite Hilbert families.

Signs do not change the genuine Hilbert family norm.

theorem EulerWeightedForcingAlgebra.weightedForcingSum_add_le {α : Type u_1} {β : Type u_2} {H : Type u_3} [Fintype α] [Fintype β] [NormedAddCommGroup H] (ρ : ℝ) (hρ : 0 < ρ) (order : α → ℕ) (f g : α → β → H) :

Weighted forcing is subadditive without any cardinality factor.

theorem EulerWeightedForcingAlgebra.weightedForcingSum_neg {α : Type u_1} {β : Type u_2} {H : Type u_3} [Fintype α] [Fintype β] [NormedAddCommGroup H] (ρ : ℝ) (order : α → ℕ) (f : α → β → H) :

Weighted forcing is invariant under the overall sign.

theorem EulerWeightedForcingAlgebra.weightedForcingSum_sum_le {α : Type u_1} {β : Type u_2} {H : Type u_3} [Fintype α] [Fintype β] [NormedAddCommGroup H] {ι : Type u_4} (ρ : ℝ) (hρ : 0 < ρ) (order : α → ℕ) (S : Finset ι) (f : ι → α → β → H) :

The forcing norm of a sum is controlled by the sum of the norms of its actual terms.

Complete finite-cutoff pressure commutator bounds for both actual source components.

Monotonicity of the actual coefficient derivative blocks in their fixed Sobolev index.

theorem EulerGevreyPressureEnergy.nonlinear_externalPressure_bound_all (period : ℝ) [Fact (0 < period)] {s : ℕ} (hs : 6 ≤ s) {A : EulerSpatialSobolevInverse.SmoothCoefficient period} (K : EulerSpatialSobolevInverse.CoefficientJet period EulerCylinderSobolev.standardDirection s A) (κ : ℝ) (m : EulerLiftedGradientSpace.Vector3) (c : ℝ) (hc : 0 < c) (hpos : ∀ (x : EulerLiftedGradientSpace.LiftDomain period) (v : EulerLiftedGradientSpace.Vector3), c * ‖v‖ ^ 2 ≤ inner ℝ ((A.coefficient x) v) v) (N : ℕ) (hN : N + 6 ≤ s) (ρ Rc M : ℝ) (hρ : 0 < ρ) (hRc : 0 ≤ Rc) (hM : 1 ≤ M) (hbase : (EulerH6Pressure.CoefficientJet.restrict K 6 hs).pressureConstant c ≤ M) (hsmall : 4 * M * (ρ * Rc) ≤ 1) (hcoeff : ∀ (l : ℕ), 1 ≤ l → l ≤ N → EulerH6Pressure.coefficientBlock period K 6 l ≤ Rc ^ l * ↑l.factorial ^ 2) (L : Fin 4 → EulerLiftedGradientSpace.Vector3 →L[ℝ] ℝ) (hL : ∀ (i : Fin 4), ‖L i‖ ≤ 1) (u v : ↥(EulerCylinderSobolevSpace.SobolevSpace period (s + 1))) :

The actual nonlinear external pressure commutator bound includes the zero-cutoff case.

theorem EulerGevreyPressureEnergy.nonlinear_basePressure_bound (period : ℝ) [Fact (0 < period)] {s : ℕ} (hs : 6 ≤ s) {A : EulerSpatialSobolevInverse.SmoothCoefficient period} (K : EulerSpatialSobolevInverse.CoefficientJet period EulerCylinderSobolev.standardDirection s A) (K0 : EulerSpatialSobolevInverse.CoefficientJet period EulerCylinderSobolev.standardDirection 6 A) (κ : ℝ) (m : EulerLiftedGradientSpace.Vector3) (c : ℝ) (hc : 0 < c) (hpos : ∀ (x : EulerLiftedGradientSpace.LiftDomain period) (v : EulerLiftedGradientSpace.Vector3), c * ‖v‖ ^ 2 ≤ inner ℝ ((A.coefficient x) v) v) (N : ℕ) (hN : N + 6 ≤ s) (ρ Rc M : ℝ) (hρ : 0 < ρ) (hRc : 0 ≤ Rc) (hM : 1 ≤ M) (hbase : (EulerH6Pressure.CoefficientJet.restrict K 5 ⋯).pressureConstant c ≤ M) (hsmall : 4 * M * (ρ * Rc) ≤ 1) (hcoeff : ∀ (l : ℕ), 1 ≤ l → l ≤ N → EulerH6Pressure.coefficientBlock period K 6 l ≤ Rc ^ l * ↑l.factorial ^ 2) (L : Fin 4 → EulerLiftedGradientSpace.Vector3 →L[ℝ] ℝ) (hL : ∀ (i : Fin 4), ‖L i‖ ≤ 1) (u v : ↥(EulerCylinderSobolevSpace.SobolevSpace period (s + 1))) :

Actual base transport-pressure commutators are bounded by the product of the two velocity energies at the same cutoff.

Both actual commutators of the order-zero pressure are controlled by the unshifted source norm.