Coarse-graining support: Support.Deterministic.WeakNormInterfaces.Bounds #
Imported from the Apache-2.0 CoarseGraining development at commit
c7ddd76c08ade64fed1b8d2ca51be14dfee8deb4.
Depthwise weighted weak-norm split for cube-indexed pieces. This is the form used by the Section 5.3 analytic estimates before the predictor, additivity, low-scale, and tail contributions have been represented as global vector fields.
Low-scale constant-tail split at one depth. If the descendant averages of w
are the averages of u plus a fixed vector c, then the depth contribution
of w is bounded by the depth contribution of u plus the constant tail.
Depthwise weak-norm triangle inequality obtained from a four-term decomposition of descendant cube averages.
Finite q = 1 weak-norm control from depthwise descendant-average controls.
This is the direct weighted-sum form of the negative Besov estimate: no
ellipticity constants or Ch5 packaging enter.
Finite q = 1 negative weak-norm bound from a four-term decomposition of
the descendant cube averages at every depth.
Finite q = 1 negative weak-norm split for cube-indexed analytic pieces at
each depth. This is the note-facing weighted Cauchy/Minkowski step for the
four contributions in the Section 5.3 maximizer estimate.
Finite high/low split for the negative weak norm. On the selected depths
high, a four-term cube-indexed decomposition is used; on the complementary
depths the original depth contribution is left untouched. This is the finite
form of the high-scale/low-scale split in the Section 5.3 maximizer proof.
Filtered low-scale constant-tail estimate. On a selected set of depths, if the
averages of w equal the averages of u plus a fixed vector c, then the
filtered contribution of w is controlled by the filtered contribution of u
and the weighted constant tail.
Finite high-scale decomposition plus low-scale constant-tail split. This is a
closer finite Lean analogue of the first displayed split in the deterministic
maximizer proof: high depths get the analytic four-term decomposition, while
low depths become a raw low-scale norm plus the p₀/q₀ constant tail.
Cutoff version of the finite maximizer weak-norm split. Depths j < L are
controlled by the four analytic cube-indexed pieces, while depths L ≤ j
contribute a raw low-scale norm and a geometric constant tail.
Finite cutoff maximizer estimate with the high-scale analytic pieces already
converted to shifted weak-norm gap sums. This combines the four-term
cube-average decomposition, the low-scale constant-tail split, and the
depthwise estimates with growth factors 3^{s'j}.
Finite q = 1 negative weak-norm split from a four-term decomposition of all
descendant cube averages. This is the weighted weak-norm Cauchy/Minkowski step
needed in the Section 5.3 weak-norm estimate.