A Factorization of the S-Matrix into Jost Matrices

@inproceedings{AFKrutov1996AFO,
  title={A Factorization of the S-Matrix into Jost Matrices},
  author={A.F.Krutov and D.I.Muravyev and V.E.Troitsky},
  year={1996}
}
An effective algebraic approach to $S$--matrix factorization into Jost matrices is developed in the case of coupled channels. The Jost matrix is given as a solution of boundary value Riemann -- Hilbert problem. A rational form is assumed for tangent of mixing angle, while there is no limitations for approximation of phase shifts.