File:Hadwiger-Nelson.svg

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Summary

Description Hadwiger–Nelson problem: 7-coloring of the plane and 4-chromatic unit distance graph.
Date
Source self-made, originally for The Geometry Junkyard
Author David Eppstein

Licensing

Public domain This work has been released into the public domain by its author, David Eppstein. This applies worldwide.
In some countries this may not be legally possible; if so:
David Eppstein grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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depicts

17 July 1996

File history

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Date/TimeThumbnailDimensionsUserComment
current04:22, 26 July 2007Thumbnail for version as of 04:22, 26 July 2007327 × 268 (4 KB)wikimediacommons>David Eppstein{{Information |Description=Hadwiger–Nelson problem: 7-coloring of the plane and 4-chromatic unit distance graph. |Source=self-made, originally for [http://www.ics.uci.edu/~eppstein/junkyard/c