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Found 16 Documents (Results 1–16)

On the Weyl matrix balls corresponding to the matricial Carathéodory problem in both nondegenerate and degenerate cases. (English) Zbl 1210.44004

Bini, Dario Andrea (ed.) et al., Numerical methods for structured matrices and applications. The Georg Heinig memorial volume. Basel: Birkhäuser (ISBN 978-3-7643-8995-6/hbk). Operator Theory: Advances and Applications 199, 289-332 (2010).
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Some applications of the Szegő theory of orthogonal rational matrix functions to extremal and interpolation functions in the matrix Carathéodory class. (Einige Anwendungen der Szegő-Theorie orthogonaler rationaler Matrixfunktionen auf Extremal- und Interpolationsprobleme in der matriziellen Carathéodory-Klasse.) (German) Zbl 1155.30358

Leipzig: Univ. Leipzig, Fakultät für Mathematik und Informatik (Habil.-Schr.). xxii, 314 p. (2008).
MSC:  30E05 47A56 47A57
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An operator-theoretic approach to a multiple point Nevanlinna-Pick problem from generalized Carathéodory functions. (English) Zbl 1136.47011

Förster, Karl-Heinz (ed.) et al., Operator theory in Krein spaces and nonlinear eigenvalue problems. Selected papers of the 3rd workshop, TU Berlin, Germany, December 12–14, 2003. Basel: Birkhäuser (ISBN 3-7643-7452-7/hbk). Operator Theory: Advances and Applications 162, 211-229 (2006).
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