On scarcity of operators with finite spectrum

DOI10.1090/S0002-9904-1976-14066-9zbMath0358.46033MaRDI QIDQ4130546

Bernard Aupetit

Publication date: 1976

Published in: Bulletin of the American Mathematical Society (Search for Journal in Brave)

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Structure, classification of topological algebras (46H20) Topological algebras, normed rings and algebras, Banach algebras (46H99)

Cites Work

• The variation of spectra
• Ring Isomorphisms of Banach Algebras
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