8 citations · 44 across the 30 of their papers we have counts for
11 papers · 1 filter
Characteristic function of M. S. Livšic and triangular models of bounded linear operators
Vladimir K. Dubovoy, Bernd Kirstein, Conrad Mädler +1
This paper is dedicated to the introduction in a circle of ideas and methods, which are connected with the notion of characteristic function of a non-selfadjoint operator. We start…
Characteristic Function, Schur Parameters and Pseudocontinuation of Schur functions
Vladimir K. Dubovoy, Bernd Fritzsche, Bernd Kirstein +2
In [19] there is an approach to the investigation of the pseudocontinuability of Schur functions in terms of Schur parameters. In particular, there was obtained a criterion for the…
Characteristic Function, Schur Interpolation Problem and Darlington Synthesis
Sergey S. Boiko, Vladimir K. Dubovoy, Bernd Fritzsche +3
In this paper we would like to show the interrelation between the different mathematical theories concerning the Schur interpolation problem, contractions in Hilbert spaces, pseudo…
On the truncated matricial Stieltjes moment problem
Bernd Fritzsche, Bernd Kirstein, Torsten Schröder +1
This paper gives via Stieltjes transform a complete description of the solution set of a matricial truncated Stieltjes-type power moment problem in the non-degenerate and degenerat…
On the structure of Hausdorff moment sequences of complex matrices
Bernd Fritzsche, Bernd Kirstein, Conrad Mädler
The paper treats several aspects of the truncated matricial -Hausdorff type moment problems. It is shown that each -Hausdorff moment sequence has a particular intrins…
On a Simultaneous Approach to the Even and Odd Truncated Matricial Stieltjes Moment Problem II. An -Schur-Stieltjes-type algorithm for sequences of holomorphic matrix-valued functions
Bernd Fritzsche, Bernd Kirstein, Conrad Mädler
The main goal of this paper is to achieve a simultaneous treatment of the even and odd truncated matricial Stieltjes moment problems in the most general case. These results are gen…