Averaging in cosmology based on Cartan scalars

Understand

We present a new approach for averaging in general relativity and cosmology.

• After a short review of the theory originally taken from the equivalence problem, we consider two ways how to deal with averaging based on Cartan scalars.
• We apply the theory for two different LTB models.
• In the first one, correlation term behaves as a positive cosmological constant, in the second example leading correlation term behaves like spatial curvature.