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math.FA2008
Relaxed commutant lifting: existence of a unique solution
S. ter Horst
In this paper we present necessary and sufficient conditions for the existence of a unique solution to the relaxed commutant lifting problem. The obtained conditions are more compl…
math.FA2008★ 7 cited
Multivariable operator-valued Nevanlinna-Pick interpolation: a survey
J. A. Ball, S. ter Horst
The theory of Nevanlinna-Pick and Carathéodory-Fejér interpolation for matrix- and operator-valued Schur class functions on the unit disk is now well established. Recent work has p…