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Round 7 v0.7 2026-07-26

Mixed Polyline–Curvature-Arc Families, Curvature Concentration, and the Value of Discrete Kinks

Compares piecewise-curvature wings (2/3/4/6/8 segments per side) against continuous constant-curvature circular-arc wings, testing whether the near-parallel two-sided wings of Rounds 3–6 are really a discrete-kink skeleton, or just a coarse discrete approximation of a smooth low-curvature wing. Final ranking: discrete-event five-link > constant-curvature arc wing > this round's best multi-segment candidate — spreading finite turning out continuously does release a small amount of congruent-containment pressure.

Exploratory numerical research; not a formal proof; not an interval certificate — Stage status as stated by the package's own documents, reproduced verbatim. Continues Moser Skew Lab v0.6. Container: the Wetzel triangle.

Connections · Connections

Relationship to other packages, stated as far as possible in the document's own words, not my interpretation.

“The discrete-event skeleton concentrates the total turning angle at the kink between the two segments; the constant-curvature wing, by contrast, spreads that same turning angle across the entire side wing … the effective factor may not be ‘whether or not curvature is present,’ but rather: where the curvature is concentrated along the curve's parameter.” — from Section 7, “The Curvature-Concentration Working Proposition,” of this package's main document.

Round 7 Core Content

A results table for piecewise-curvature wings (comparing five segment counts), the necessary search audit (a warning that the heuristic search did not recover the known control solution), the analytic contour of the continuous constant-curvature wing, the final ranking table, the curvature-concentration working proposition, points where the results should not be over-generalized, a resolution audit of the best segmented candidate, and the direction for Round 8 (a controllable curvature-concentration family).

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Interpretation · Interpretation

A comparison of two reliable higher-order controls and a tentative working proposition, stated as applying only to this round's research family.

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Search-Control Audit

Explains why the heuristic search result for the m=2 segment family cannot be taken directly as evidence of that family's mathematical disadvantage — it is under-search, not a curvature effect.

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Files · Files

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