Ricci scalar
= Ricci scalar
{c}
{title2=$R$}
The Ricci scalar is the full metric contraction of the <Ricci tensor>:
$$
R=g^{\mu\nu}R_{\mu\nu}.
$$
= Ricci scalar
{c}
{title2=$R$}
The Ricci scalar is the full metric contraction of the <Ricci tensor>:
$$
R=g^{\mu\nu}R_{\mu\nu}.
$$