IAU Colloquium "Magnetic Coupling of the Solar Atmosphere" edition:188 location:Santorini, Greece date:10-16 June 2002
In this paper we show that the classical negative energy
wave (N.E.W.) formula is frame dependent. By analogy with a simple mechanical problem, we show that the negligible second order perturbations become energetically important and function as an energy source for the linear waves.