Manuscript OpenAI@2026-10-07 · OpenAI.tex · remark · 6a931f8f

Remark: 165-01. The crossing number of complete graphs

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OpenAI@2026-10-07#rem:oai-p-165-01

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Authors: OpenAI. Family 165.

Title: The crossing number of complete graphs.

Abstract: We prove the Harary–Hill conjecture: for every positive integer n, the ordinary crossing number of the complete graph Kn is ${}displaystyle {}frac14{}left{}lfloor{}frac n2{}right{}rfloor {}left{}lfloor{}frac{n-1}{2}{}right{}rfloor {}left{}lfloor{}frac{n-2}{2}{}right{}rfloor {}left{}lfloor{}frac{n-3}{2}{}right{}rfloor.$

This abstract is a catalogue record. It is not a verification and not a premise. It does not close O.1. O.1 stays NOT_CLOSED. No quantum coefficient is admitted. No compilation is asserted.

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