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Chromatic number of the n-cube

  1. Jun 3, 2009 #1
    What is the chromatic number of the n-cube? As a graph, I mean. For the square and 3-cube, for example, it's 2.
     
  2. jcsd
  3. Jun 3, 2009 #2
    Empirical evidence suggests it's just 2.
     
  4. Jun 3, 2009 #3
    The n-cube is bipartite, so its chromatic number is 2. If we label the vertices canonically with vectors in [tex]\{0, 1\}^n[/tex], then we can partition the vertices into those with an even number of 1's and those with an odd number of 1's.
     
  5. Jun 3, 2009 #4
    Oh ya, thanks.
     
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