Talk:Hadwiger–Nelson problem

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Mathematics rating:	B Class	Mid Priority	Field: Discrete mathematics
Please update this rating as the article progresses, or if the rating is inaccurate. Click to show/hide comments. Please add to or update the comments to suggest improvements to the article. Geometry guy 23:25, 10 July 2007 (UTC)

What is the meaning of "well-behaved region boundaries" here? --219.78.172.122 01:06, 25 November 2006 (UTC)

I changed this to a more specific and better referenced claim. —David Eppstein 22:11, 26 November 2006 (UTC)

How many colors are necessary and sufficient to color a 3D space? 213.220.248.216 07:45, 17 January 2007 (UTC)

See first paragraph of the "variations" section. I just added a reference for the claim there, but didn't otherwise change the text that already answers what is known for your question. —David Eppstein 08:01, 17 January 2007 (UTC)