On commutant lifting with finite defect. II

DOI10.1006/JFAN.1996.2992zbMath0889.46022OpenAlexW2041901232MaRDI QIDQ674734

Tomas Ya. Azizov, Rodrigo Arocena, Stefania A. M. Marcantognini, Aalt Dijksma

Publication date: 18 June 1998

Published in: Journal of Functional Analysis (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/jfan.1996.2992

zbMATH Keywords

contractionKrein spaceisometryorthogonal projectioncommutant liftingisometric dilationnegative index

Mathematics Subject Classification ID

Linear operator methods in interpolation, moment and extension problems (47A57) Dilations, extensions, compressions of linear operators (47A20) Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Linear operators on spaces with an indefinite metric (47B50)

Related Items (5)

Contractions and the Commutant Lifting Theorem in Kreĭn Spaces ⋮ Commutant lifting and interpolation: The time-varying case ⋮ An indefinite analog of Sarason's generalized interpolation theorem ⋮ On Nudel'man's problem and indefinite interpolation in the generalized Schur and Nevanlinna classes ⋮ Notes on interpolation in the generalized Schur class. II. Nudel’man’s problem

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