Any 7-colorable knot can be colored by four colors

Journal of the Mathematical Society of Japan

Online ISSN : 1881-1167
Print ISSN : 0025-5645
ISSN-L : 0025-5645

Any 7-colorable knot can be colored by four colors

Kanako Oshiro

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Keywords: knots, 7-colorings, colors, ribbon 2-knots

JOURNAL FREE ACCESS

2010 Volume 62 Issue 3 Pages 963-973

DOI https://doi.org/10.2969/jmsj/06230963

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Abstract

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.

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© 2010 The Mathematical Society of Japan

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