彩色数 (結び目理論)
1. TricolorabilityIn the mathematical field of knot theory, the tricolorability of a knot is the ability of a knot to be colored with three colors subject to certain rules. Tricolorability is an isotopy invariant, and hence can be used to distinguish between two different knots. In particular, since the unknot is not tricolorable, any tricolorable knot is necessarily nontrivial.
Read “Tricolorability” on English Wikipedia
Read “彩色数 (結び目理論)” on Japanese Wikipedia
Read “Tricolorability” on DBpedia
Read “Tricolorability” on English Wikipedia
Read “彩色数 (結び目理論)” on Japanese Wikipedia
Read “Tricolorability” on DBpedia
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