Relation between hyperbolic Nizhnik-Novikov-Veselov equation and stationary Davey-Stewartson II equation
arXiv:0810.4767 · doi:10.1088/0266-5611/25/2/025003
Abstract
A Lax system in three variables is presented, two equations of which form the Lax pair of the stationary Davey-Stewartson II equation. With certain nonlinear constraints, the full integrability condition of this Lax system contains the hyperbolic Nizhnik-Novikov-Veselov equation and its standard Lax pair. The Darboux transformation for the Davey-Stewartson II equation is used to solve the hyperbolic Nizhnik-Novikov-Veselov equation. Using Darboux transformation, global -soliton solutions are obtained. It is proved that each -soliton solution approaches zero uniformly and exponentially at spatial infinity and is asymptotic to lumps of peaks at temporal infinity.
25 pages, 5 figures