General explicit descriptions for two classes of symmetries involving idempotents

DOI10.1080/03081087.2022.2033153zbMath1529.47003OpenAlexW4210607413MaRDI QIDQ6160510

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Publication date: 10 May 2023

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081087.2022.2033153

zbMATH Keywords

symmetryidempotentKrein space

Mathematics Subject Classification ID

Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Positive linear operators and order-bounded operators (47B65)

Cites Work

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• Symmetries for \(J\)-projection
• The absolute values and support projections for a class of operator matrices involving idempotents
• General explicit descriptions for intertwining operators and direct rotations of two orthogonal projections
• Two Subspaces

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