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Update C_22b upper bound to 7.2012719* (optimal unequal double helix) - #267
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Computer-assisted bound Rop(T(2,n)) <= 7.2012719 n + 19.649 for odd n >= 59, from an optimal coaxial double helix with unequal radii under all thickness constraints, with thickness certified by interval arithmetic. Asterisked: the verification code is self-archived. Also records the paper's observation that the conformation behind the 7.31 bound of Kim-Oh-Huh (2024) violates the curvature constraint. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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My resolver script had been cleared from the scratchpad between sessions, so the merge was committed with the markers still in README.md. Both changelog entries were present and correct underneath; only the three marker lines needed deleting. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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I committed three of them to README.md an hour ago resolving #267, and the checker passed clean over the result. Conflict markers are the one defect here that is unambiguous and trivially detectable, so they should be an error. Self-tested: planting a marker in a page makes the run report E4 and exit non-zero; removing it returns the run to clean. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Adds a computer-assisted upper bound$C_{22b} \le 7.2012719$ *: an optimal coaxial double helix with unequal radii (all thickness constraints, including curvature) gives an explicit $C^{1,1}$ conformation of $T(2,n)$ with certified thickness ≥ 1 and $L \le 7.2012719,n + 19.649$ for odd $n \ge 59$ . Verification by interval arithmetic (~40 s, one core); code, parameters and log at a pinned commit of https://github.com/YouhuaLi/tight-alternating-knot-constant. Asterisked as self-archived and computer-assisted. Also notes the paper's finding that the conformation behind the 7.31 bound [Kim2024] violates the curvature constraint. README cell and Recent progress updated.
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