G_ab = R_ab - 1/2 * R * g_ab(adsbygoogle = window.adsbygoogle || []).push({});

and

R = g^(ab) * R_ab

then

G_ab = R_ab - 1/2 * R_ab * (g^(ab) * g_ab)

=1/2 * R_ab

for this abomination someone please correct me.

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# Einstein Tensor

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