On several types of resolvent matrices of nondegenerate matricial Carathéodory problems Original Research Article

The solution set of a nondegenerate matricial Carathéodory problem can be described with the aid of linear fractional transformations of matrices where the parameter sets are either the matricial Schur class or the class of Jq-nonnegative meromorphic nondegenerate column pairs. This paper is aimed at clarifying the connections between these two different types of parametrizations.