8 citations · 44 across the 29 of their papers we have counts for
Showing 2009 · math.FAShow all
2 papers · 2 filters
math.FA2009
On an Interpolation Problem for J-Potapov Functions
Bernd Fritzsche, Bernd Kirstein, Uwe Raabe
Let, J, be an m-by-m-signature matrix and let D be the open unit disk in the complex plane. Denote by P{J,0}(D) the class of all meromorphic m-by-m-matrix-valued functions, f, in D…
math.FA2009
Shift Operators Contained in Contractions, Pseudocontinuable Schur Functions and Orthogonal Systems on the Unit Circle
Vladimir K. Dubovoy, Bernd Fritzsche, Bernd Kirstein
The main aim of this paper is to establish the connection between well-known criteria for the pseudocontinuability of a non-inner Schur function Theta in the unit disk. In a canoni…