Complex sentence: In Best, Robert W.B., "Energy and momentum density of a Landau-damped wave packet", J. Plasma Phys.63 (2000), 371-391 this issue is studied and suitable second-order initial conditions are proposed on physical grounds.
Split into simpler sentences: In Best, Robert W.B., "Energy and momentum density of a Landau-damped wave packet", J. Plasma Phys.63 (2000), 371-391 this issue is studied. Suitable second-order initial conditions are proposed on physical grounds.