Unitary colligations of operators in Krein spaces

DOI10.1007/BF01732319zbMath0709.47039MaRDI QIDQ921539

Stefania A. M. Marcantognini

Publication date: 1990

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

zbMATH Keywords

characteristic functionunitary colligation of operators in Krein spaces

Mathematics Subject Classification ID

Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) (47A56) Canonical models for contractions and nonselfadjoint linear operators (47A45) Linear operators on spaces with an indefinite metric (47B50) Operator colligations (= nodes), vessels, linear systems, characteristic functions, realizations, etc. (47A48)

Related Items (1)

Unitary colligations of operators in Krein spaces

Cites Work

• Unitary colligations of operators in Krein spaces
• Extensions of J-isometric and J-symmetric operators
• Models for noncontractions
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