Documentation

LeanPool.HighContrastHomogenization.Support.Book.Ch04.Theorems.MomentFactorBounds.Apex

Coarse-graining support: Support.Book.Ch04.Theorems.MomentFactorBounds.Apex #

Imported from the Apache-2.0 CoarseGraining development at commit c7ddd76c08ade64fed1b8d2ca51be14dfee8deb4.

A full coarse block is integrable as soon as the two factor observables on the same cube have finite ξ moments.

This is the Ch4 source theorem that prevents Ch5 from carrying a separate full-block integrability hypothesis once it has the factor moments.

The unit full coarse block is integrable as soon as the two unit factor observables in (P4) have finite ξ moments.

theorem HCPolySupport.Book.Ch04.RestrictionLawCarrier.barSigmaAtScale_le_LambdaMomentAtScale_of_integrable_factor_observables {d : ℕ} [NeZero d] {P : RestrictionCoeffLaw d} (hP : RestrictionLawCarrier P) (hStruct : RestrictionStructuralLaw P) {sUpper sLower : ℝ} {ξ : ℕ} (hsUpper : 0 < sUpper) (hsLower : 0 < sLower) (hξ : 1 ≤ ξ) (hBlock : ∀ (n : ℕ), MeasureTheory.Integrable (coarseFullBlockMatrixAtCube (originCube d ↑n)) P) (hUpperMeas : ∀ (n : ℕ), AEMeasurable (fun (a : RegCoeffField d) => LambdaSqCoeffField (originCube d ↑n) sUpper (Ch02.MultiscaleExponent.finite 1) a) P) (hLowerMeas : ∀ (n : ℕ), AEMeasurable (fun (a : RegCoeffField d) => (lambdaSqCoeffField (originCube d ↑n) sLower (Ch02.MultiscaleExponent.finite 1) a)⁻¹) P) (hUpperPowInt : ∀ (n : ℕ), MeasureTheory.Integrable (fun (a : RegCoeffField d) => LambdaSqCoeffField (originCube d ↑n) sUpper (Ch02.MultiscaleExponent.finite 1) a ^ ξ) P) (hLowerPowInt : ∀ (n : ℕ), MeasureTheory.Integrable (fun (a : RegCoeffField d) => (lambdaSqCoeffField (originCube d ↑n) sLower (Ch02.MultiscaleExponent.finite 1) a)⁻¹ ^ ξ) P) (n : ℕ) :
hP.barSigmaAtScale hStruct ↑n ≤ LambdaMomentAtScale P (↑n) sUpper ξ

Structural-law upper scalar factor bound from integrable moment observables.

theorem HCPolySupport.Book.Ch04.RestrictionLawCarrier.barSigmaStarAtScale_inv_le_lambdaInvMomentAtScale_of_integrable_factor_observables {d : ℕ} [NeZero d] {P : RestrictionCoeffLaw d} (hP : RestrictionLawCarrier P) (hStruct : RestrictionStructuralLaw P) {sUpper sLower : ℝ} {ξ : ℕ} (hsUpper : 0 < sUpper) (hsLower : 0 < sLower) (hξ : 1 ≤ ξ) (hBlock : ∀ (n : ℕ), MeasureTheory.Integrable (coarseFullBlockMatrixAtCube (originCube d ↑n)) P) (hUpperMeas : ∀ (n : ℕ), AEMeasurable (fun (a : RegCoeffField d) => LambdaSqCoeffField (originCube d ↑n) sUpper (Ch02.MultiscaleExponent.finite 1) a) P) (hLowerMeas : ∀ (n : ℕ), AEMeasurable (fun (a : RegCoeffField d) => (lambdaSqCoeffField (originCube d ↑n) sLower (Ch02.MultiscaleExponent.finite 1) a)⁻¹) P) (hUpperPowInt : ∀ (n : ℕ), MeasureTheory.Integrable (fun (a : RegCoeffField d) => LambdaSqCoeffField (originCube d ↑n) sUpper (Ch02.MultiscaleExponent.finite 1) a ^ ξ) P) (hLowerPowInt : ∀ (n : ℕ), MeasureTheory.Integrable (fun (a : RegCoeffField d) => (lambdaSqCoeffField (originCube d ↑n) sLower (Ch02.MultiscaleExponent.finite 1) a)⁻¹ ^ ξ) P) (n : ℕ) :
(hP.barSigmaStarAtScale hStruct ↑n)⁻¹ ≤ lambdaInvMomentAtScale P (↑n) sLower ξ

Structural-law lower inverse-star scalar factor bound from integrable moment observables.

theorem HCPolySupport.Book.Ch04.RestrictionLawCarrier.thetaAtScale_le_widetildeThetaAtScale_of_integrable_factor_observables {d : ℕ} [NeZero d] {P : RestrictionCoeffLaw d} (hP : RestrictionLawCarrier P) (hStruct : RestrictionStructuralLaw P) {sUpper sLower : ℝ} {ξ : ℕ} (hsUpper : 0 < sUpper) (hsLower : 0 < sLower) (hξ : 1 ≤ ξ) (hBlock : ∀ (n : ℕ), MeasureTheory.Integrable (coarseFullBlockMatrixAtCube (originCube d ↑n)) P) (hUpperMeas : ∀ (n : ℕ), AEMeasurable (fun (a : RegCoeffField d) => LambdaSqCoeffField (originCube d ↑n) sUpper (Ch02.MultiscaleExponent.finite 1) a) P) (hLowerMeas : ∀ (n : ℕ), AEMeasurable (fun (a : RegCoeffField d) => (lambdaSqCoeffField (originCube d ↑n) sLower (Ch02.MultiscaleExponent.finite 1) a)⁻¹) P) (hUpperPowInt : ∀ (n : ℕ), MeasureTheory.Integrable (fun (a : RegCoeffField d) => LambdaSqCoeffField (originCube d ↑n) sUpper (Ch02.MultiscaleExponent.finite 1) a ^ ξ) P) (hLowerPowInt : ∀ (n : ℕ), MeasureTheory.Integrable (fun (a : RegCoeffField d) => (lambdaSqCoeffField (originCube d ↑n) sLower (Ch02.MultiscaleExponent.finite 1) a)⁻¹ ^ ξ) P) (n : ℕ) :
hP.thetaAtScale hStruct ↑n ≤ widetildeThetaAtScale P (↑n) sUpper sLower ξ

Direct structural-law comparison Theta_n <= widetildeTheta_n from integrable moment observables.