On Jan 24, 3:56 pm, "Koobee Wublee" wrote:
On Jan 24, 11:11 am, "Igor" wrote:

The Einstein tensor has zero covariant divergence. Ricci doesn't.

What does that mean?

If you don't know, look it up.

IIRC, the Einstein tensor is derivable from a contraction on the
Bianchi identities of the Riemann Curvature. [...]

Bullsh*t! The Einstein tensor can only be derived from the
Einstein-Hilbert Lagrangian.

This is coming from the same guy that doesn't know how to transform a
domain.

Formal education is often a good cure for ignorance. Stupidity, on the
other hand, is incurable.