Action of an operator with nonclosed range on orthonormal bases in a Hilbert space

DOI10.1007/BF01057265zbMath0714.47001OpenAlexW2092771307MaRDI QIDQ750841

V. V. Shevchik

Publication date: 1989

Published in: Ukrainian Mathematical Journal (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01057265

zbMATH Keywords

orthonormal basisunconditional basisconditional norms

Mathematics Subject Classification ID

Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product) (46C05) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Summability and bases; functional analytic aspects of frames in Banach and Hilbert spaces (46B15)

Related Items (1)

Operators dense embedding and quasicomplements of subspaces of Banach spaces

Cites Work

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