Conway knot
urinometer
plural of Curtin
Alternative spelling of whoop-de-doo
(mathematics) A particular knot with 11 crossings, related by mutation to the Kinoshita-Terasaka knot.
コンウェイが導入した11交差の結び目は、そのスライス性が解明されるまで何十年もの間位相幾何学者を悩ませていた。
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