An integrable generalization to 2 + 1 dimensions of the shallow water
wave equation of Ablowitz, Kaup, Newell and Segur [Stud. Appl. Math. 5
3 (1974) 249] is sought through the bilinear approach. This equation i
s shown to belong to the KP hierarchy and a broad class of solutions i
ncluding the N-soliton solution is obtained.