A Converse to Von Neumann's Inequality

DOI10.2307/2043562zbMATH Open0486.47008OpenAlexW4239719541MaRDI QIDQ3946653

James Rovnyak

Publication date: 1982

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2307/2043562

zbMATH Keywords

backward shiftcontraction operatorPick-Nevanlinna theoremconverse to von Neumann's inequalityfinite dimensional invariant subspacesPick interpolation theorem

Mathematics Subject Classification ID

Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Moment problems and interpolation problems in the complex plane (30E05)

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