The EMS Publishing House is now EMS Press and has its new home at

Please find all EMS Press journals and articles on the new platform.

Zeitschrift für Analysis und ihre Anwendungen

Full-Text PDF (629 KB) | Metadata | Table of Contents | ZAA summary
Volume 14, Issue 3, 1995, pp. 431–439
DOI: 10.4171/ZAA/632

Published online: 1995-09-30

On the Operator-Valued Nevanlinna-Pick Problem

A. Ionescu[1]

(1) Texas A&M University, College Station, USA

In this note we construct a specific Schur-Nevanlinna type algorithm that will be used in describing more precisely the solutions of the operator-valued Nevanlinna-Pick problem with the so-called method of Weyl circles. We also present an approach to the Pick criterion in the operator-valued setting.

Keywords: Cascade transformations, contractions, elementary rotations, operator-valued functions, positive definiteness

Ionescu A.: On the Operator-Valued Nevanlinna-Pick Problem. Z. Anal. Anwend. 14 (1995), 431-439. doi: 10.4171/ZAA/632