Spectral theory for periodic self-adjoint Dirac operators and inverse scattering transform for the defocusing non-linear Schrödinger equation with periodic boundary conditions
The inverse spectral theory for a self-adjoint one-dimensional Dirac operator associated periodic potentials is formulated via a Riemann–Hilbert problem (RHP) approach. The resulting formalism is also used to solve the initial value problem for the non-linear Schrödinger (NLS) equation. A uniqueness theorem for the s...