dr. undefined Posted July 16, 2012 Share Posted July 16, 2012 Do you agree with the fact that Einstein introduced the curvature tensor taking it 0 to be legit? Link to comment Share on other sites More sharing options...
Aethelwulf Posted July 16, 2012 Share Posted July 16, 2012 Do you agree with the fact that Einstein introduced the curvature tensor taking it 0 to be legit? When is it taken to be zero? Link to comment Share on other sites More sharing options...
elfmotat Posted July 17, 2012 Share Posted July 17, 2012 Which curvature tensor (Riemann, Ricci, Weyl)? And in what situation? In a vacuum where Tab=0, then by the field equations you get Rab=0. So in a vacuum the Ricci tensor vanishes. On the other hand, the Riemann and Weyl tensors do not generally vanish. 1 Link to comment Share on other sites More sharing options...
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