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zbMath0537.46045MaRDI QIDQ3322666

James W. Rowell

Publication date: 1984

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

perturbation index Fredholm theory unital Banach algebra essential spectra closed ideal Weyl spectra unilateral spectra

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) (Semi-) Fredholm operators; index theories (47A53) Ideals and subalgebras (46H10)

Related Items (1)

Linear maps preserving regularity in \(C^*\)-algebras

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