A remark on closability of linear mappings in normed algebras

DOI10.1007/BF01193683zbMath0625.46057OpenAlexW2086379163MaRDI QIDQ579595

Assadollah Niknam

Publication date: 1986

Published in: Archiv der Mathematik (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01193683

zbMATH Keywords

spectral radiusspectrumrangenormed algebraquasi-nilpotentclosability of densely defined derivations in simple unital Banach algebrasseparating space

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Commutators, derivations, elementary operators, etc. (47B47) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) General theory of topological algebras (46H05)

Cites Work

• Automatic relative boundedness of derivations in \(C*\)-algebras
• Propriétés spectrales des algèbres de Banach
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