C. Sulem et Pl. Sulem, THE FOCUSING NONLINEAR SCHRODINGER-EQUATION - EFFECT OF THE COUPLING TO A LOW-FREQUENCY FIELD, Mathematics and computers in simulation, 43(1), 1997, pp. 57-66
The main properties of the focusing nonlinear Schrodinger equation for
a multidimensional wavepacket envelop are reviewed. The coupling to a
mean field or to low frequency acoustic waves stirred by the wavepack
et is analyzed.