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S Mar 24, 2021 at 14:17 history suggested Nick Ulyanov CC BY-SA 4.0
Fixed "Formal" link
Mar 24, 2021 at 13:54 review Suggested edits
S Mar 24, 2021 at 14:17
Oct 22, 2017 at 3:53 comment added W. Cadegan-Schlieper 3x3 is the minimum you need to see an "edge" of bright-dark-bright or dark-bright-dark which is one of the axes of the Klein bottle.
Mar 10, 2017 at 9:42 history edited CommunityBot
replaced http://www.nsf.gov/ with https://www.nsf.gov/
Feb 13, 2012 at 23:07 comment added Mikael Vejdemo-Johansson @Simon: 2x2 probably is too small to see things happening; but I know people have looked at 5x5 and found the klein bottle, as well as some enrichment of the structure there.
Feb 13, 2012 at 11:43 comment added fosco This is AWESOME!
Nov 14, 2010 at 12:34 comment added Qiaochu Yuan @Paul: this was already mentioned in an answer by Lucas Culler.
Nov 13, 2010 at 16:17 comment added Simon Rose How does this vary if you choose a different "sample size"? What if you pick 2x2 "pixels"? Or 4x4 ones? Or 2x3, or generally n x m ones? This is certainly fascinating, and it makes me wonder how generally it holds...
Nov 13, 2010 at 5:50 history edited Paul Siegel CC BY-SA 2.5
deleted 34 characters in body
Nov 13, 2010 at 5:43 history answered Paul Siegel CC BY-SA 2.5