N. Sibgatullin et R. Gatignol, HAMILTONIAN DESCRIPTION FOR THE MOTIONS O F A STRATIFIED LIQUID, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 318(9), 1994, pp. 1175-1180
The oscillatory motion of heavy stratified liquids with a velocity der
iving from a potential is considered. We obtain canonical variables an
d the associated Hamiltonian function.