Any 7-colorable knot can be colored by four colors
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概要
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Any 7-colorable 1-knot has a 7-colored diagram such that exactly four colors of seven are assigned to the arcs of the diagram.
- 社団法人 日本数学会の論文
- 2010-07-01
Any 7-colorable 1-knot has a 7-colored diagram such that exactly four colors of seven are assigned to the arcs of the diagram.