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Supersets for the spectrum of elements in extended Banach algebras - MaRDI portal

Supersets for the spectrum of elements in extended Banach algebras

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Publication:914120

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DOI10.1155/S016117128900102XzbMath0701.46032OpenAlexW2014116015MaRDI QIDQ914120

Morteza Seddighin

Publication date: 1989

Published in: International Journal of Mathematics and Mathematical Sciences (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/46478

zbMATH Keywords

Banach algebra direct sum quasi-singular elements spectrum elements

Mathematics Subject Classification ID

General theory of topological algebras (46H05)

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