Weyl theory and explicit solutions of direct and inverse problems for Dirac system with a rectangular matrix potential

Bernd Fritzsche Bernd Kirstein I. Roitberg Alexander Sakhnovich

Weyl function Weyl theory Dirac system rectangular matrix potential direct problem inverse problem pseudo-exponential potential explicit solution rational matrix function non-expansive matrix function realization

34B20 34L40 15A15 93B15