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RicciToRiemann

RicciToRiemann[expr]
converts Ricci tensors and scalars in expr to Riemann tensors.
RicciToRiemann[expr, cd]
only converts curvature tensors of the covariant derivative cd.
  • If the curvature relations are enabled RicciToRiemann returns the original expression.
  • Ricci scalars are returned wrapped in a Scalar head to prevent index collisions.