B. Fritzsche

activity

20042023

most citedRecovery of Dirac system from the rectangular Weyl matrix function

8 citations · 44 across the 29 of their papers we have counts for

collaborators

Showing 2015 · math.CVShow all

2 papers · 2 filters

math.CV2015

Rational $q \times q$ Carathéodory Functions and Central Non-negative Hermitian Measures

Bernd Fritzsche, Bernd Kirstein, Conrad Mädler

We give an explicit representation of central measures corresponding to finite Toeplitz non-negative definite sequences of complex $q \times q$ matrices. Such measures are intimatel…

math.CV2015

On Matrix-Valued Stieltjes Functions with an Emphasis on Particular Subclasses

Bernd Fritzsche, Bernd Kirstein, Conrad Mädler

The paper deals with particular classes of $q \times q$ matrix-valued functions which are holomorphic in $C ∖ [α, + \infty)$ , where $α$ is an arbitrary real number. The…

Rational q×q Carathéodory Functions and Central Non-negative Hermitian Measures

On Matrix-Valued Stieltjes Functions with an Emphasis on Particular Subclasses

Rational $q \times q$ Carathéodory Functions and Central Non-negative Hermitian Measures