Dmitry Pelinovsky and Derchyi Wu
Spectral decomposition theorem for the Ishimori--II equations
(70K, LaTeX)

ABSTRACT.  We study the gauge transformation between spectral problems 
and their adjoints for the Ishimori-II and Davey-Stewartson II 
equations. We prove the spectral decomposition theorem for 
eigenfunctions of a linear operator associated with the 
Ishimori-II equations.