The relative spectrum of elements in a real Banach algebra

DOI10.1007/BF02599791zbMath0421.46042OpenAlexW4248664137MaRDI QIDQ1133115

W. E. Pfaffenberger, Gerald N. Hile

Publication date: 1980

Published in: Mathematische Annalen (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/163415

zbMATH Keywords

resolvent equationspectral mapping theoremreal Banach algebraCauchy's formularelative analyatic functionsrelative spectral radiusrelative spectrumTaylor and Laurent series

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) General theory of topological algebras (46H05) Functional calculus in topological algebras (46H30)

Cites Work

• A class of hyperbolic operators with double involutive characteristics of fuchsian type
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