Gravity Waves on a Liquid Surface Separation of Variables in Cartesian Coordinates (Bgca) Gravity Waves Boundary Conditions (Bgcb) Gravity Waves on an Infinitely Deep Ocean (Bgcc) Gravity Waves on an Finite-Depth Ocean (Bgcd) Standing Waves (Bgce) Gravity Waves at Vertical Boundaries (Bgcf) Last updated 4/9/04. Christopher E. Brennen