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.