Wave-action density
= Wave-action density
{title2=$W$}
For an averaged Lagrangian, the wave-action density is $W=\partial\overline L/\partial\omega$, up to the sign convention used for the fast phase.
= Wave-action density
{title2=$W$}
For an averaged Lagrangian, the wave-action density is $W=\partial\overline L/\partial\omega$, up to the sign convention used for the fast phase.