Symbol in context

$\phi_{,i}$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Used in 9 equations

\Gamma^0_{0i} = \partial_i \ln U = \phi_{,i}

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\Gamma^i_{00} = U^2\phi_{,i}

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\partial_j(U^2\phi_{,i}) = U^2\phi_{,i}\phi_{,j} + U^2\phi_{,ij}

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\Gamma^i_{00}\Gamma^0_{j0} = U^2\phi_{,i}\phi_{,j}

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\phi_{,i}\phi_{,j}

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

R^i{}_{0j0} = U^2\left(\phi_{,ij} + \phi_{,i}\,\phi_{,j}\right).

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\phi_{,ij}+\phi_{,i}\phi_{,j}

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.

\mathcal T_{ij} := c^2\left(\phi_{,ij} + \phi_{,i}\,\phi_{,j}\right),

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\phi_{,i}\phi_{,j}

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.