| 单词 | Six-Color Theorem |
| 释义 | Six-Color TheoremTo color any map on the Sphere or the Plane requires at most six-colors. This number caneasily be reduced to five, and the Four-Color Theorem demonstrates that the Necessary number is, in fact, four. See also Four-Color Theorem, Heawood Conjecture, Map Coloring
Franklin, P. ``A Six Colour Problem.'' J. Math. Phys. 13, 363-369, 1934. Hoffman, I. and Soifer, A. ``Another Six-Coloring of the Plane.'' Disc. Math. 150, 427-429, 1996. Saaty, T. L. and Kainen, P. C. The Four-Color Problem: Assaults and Conquest. New York: Dover, 1986. |
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