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LeanPool.HighContrastHomogenization.Support.CoarseGraining.OriginCubeEllipticRecovery.DeterministicCoarseData

Coarse-graining support: Support.CoarseGraining.OriginCubeEllipticRecovery.DeterministicCoarseData #

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

Origin-cube elliptic recovery -- deterministic coarse data output #

Adjoint-free sigma_* <= sigma and sigma <= b orderings on the centered open cube, the packaged openCubeDeterministicCoarseData_of_triadicCube and its descendant-family variant. These are the outputs consumed by the Chapter-3 coarse Poincare wrappers.

Adjoint-free deterministic ordering σ_*(U; a) ≤ σ(U; a) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Deterministic ordering σ(U; a) ≤ b(U; a) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Deterministic upper bound b(U; a) ≤ average(symmPart(a) + k(a)ᵀ symmPart(a)⁻¹ k(a)) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Deterministic upper-left matrix-order bound b(U; a) ≤ average(symmPart(a) + k(a)ᵀ symmPart(a)⁻¹ k(a)) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Deterministic inverse-side harmonic-mean upper bound σ_*^{-1}(U; a) ≤ average(symmPart(a)⁻¹) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Deterministic inverse-side harmonic-mean matrix bound σ_*^{-1}(U; a) ≤ average(symmPart(a)^{-1}) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Deterministic harmonic-mean lower bound (average(symmPart(a)^{-1}))^{-1} ≤ σ_*(U; a) on the centered open cube, packaged directly from deterministic recovery-plus-ellipticity data.

Minimal one-cube deterministic coarse-data constructor from translated origin-cube recovery data.

This is the exact upstream theorem needed to start removing the remaining OpenCubeDescendantDeterministicCoarseData burden from the note-facing Chapter 3 coarse Poincare wrappers.

If the coefficient field is self-adjoint, then the canonical coarse \kappa(openCubeSet Q; a) vanishes on any triadic open cube once translated origin-cube elliptic recovery data is available.

Descendant deterministic coarse data from a descendant family of translated origin-cube recovery witnesses.

This is the packaged upstream theorem that would directly discharge the last honest Chapter-2 burden still visible in the top harmonic Chapter-3 coarse-Poincare wrappers.