A perturbation expansion for the Zakharov-Shabat inverse scattering transform. (English) Zbl 0334.47006
MSC:
35P25 | Scattering theory for PDEs |
35Q51 | Soliton equations |
35Q53 | KdV equations (Korteweg-de Vries equations) |
47A40 | Scattering theory of linear operators |
47A55 | Perturbation theory of linear operators |