info prev up next book cdrom email home

d'Alembertian Operator

Written in the Notation of Partial Derivatives,

\begin{displaymath}
\vbox{\hrule height.6pt\hbox{\vrule width.6pt height6pt \ker...
... \equiv \nabla^2 - {1\over c^2} {\partial^2\over\partial t^2},
\end{displaymath}

where $c$ is the speed of light. Writing in Tensor notation,

\begin{displaymath}
\vbox{\hrule height.6pt\hbox{\vrule width.6pt height6pt \ker...
...ppa} - \Gamma^\lambda {\partial \phi\over \partial x^\lambda}.
\end{displaymath}

See also Harmonic Coordinates




© 1996-9 Eric W. Weisstein
1999-05-24