date: jeudi 6 avril, 16h30
lieu : Calais, salle B014  
intervenant: D. Shepelsky, Institute of Low Temperatures, Kharkiv, Ukraine

Titre :
Matrix Baker-Akhiezer function on the complex plane with cuts

Résumé :

We give a new definition and representation of a matrix Baker-Akhiezer
function on the complex plane with cuts, which generates finite-genus
(quasi periodic) solutions of the nonlinear Schroedinger equation.
Such a representation can be efficiently used for different
applications in the theory of integrable nonlinear equations,
particularly, for studying the initial value problems with "step-like"
initial data.