On invariant maximal non-negative subspaces of certain operators acting in a Krein space

DOI10.1007/BF01199760zbMath0705.47031OpenAlexW2084189069MaRDI QIDQ917883

Aurelian Gheondea

Publication date: 1989

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

Full work available at URL: https://doi.org/10.1007/bf01199760

zbMATH Keywords

block-matrix representationdefinite inner product spacesexistence of maximal semi-definite invariant subspaces of certain operators in a Krein space

Mathematics Subject Classification ID

Invariant subspaces of linear operators (47A15) Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Linear operators on spaces with an indefinite metric (47B50)

Cites Work

• Tomita's spectral analysis in Krein spaces
• Zur Spektraltheorie J-selbstadjungierter Operatoren
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