Department of Mathematics, University of Texas at Dallas, Richardson, Texas 75083-0688 ; Institutul de Matematica al Academiei Române, CP 1-764, 70700 Bucuresti, România
Abstract:
In this paper we analyze the existence of a Schur algorithm and obtain coefficient characterizations for the functions in a generalized Schur class. An application to an interpolation problem of Carathéodory type raised by M.G. Krein and H. Langer is indicated.