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Vanishing Ricci Tensor in 3 Dimensions

  1. Sep 24, 2012 #1
    In my general relativity course my professor recommended that it would be useful to convince ourselves that in 3 dimensions the vacuum field equations are trivial because the vanishing of the Ricci tensor implies the vanishing of the full Riemann tensor. However, I am unsure of how to show this mathematically; if someone could help me or point me in the right direction I would appreciate it, thanks.
     
  2. jcsd
  3. Sep 24, 2012 #2

    samalkhaiat

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    Science Advisor

    Look at
    www.physicsforums.com/showthread.php?t=128275
     
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