Equality of spectra of quasi-similar hyponormal operators
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- by Stuart Clary
- Proc. Amer. Math. Soc. 53 (1975), 88-90
- DOI: https://doi.org/10.1090/S0002-9939-1975-0390824-7
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Abstract:
It is shown that quasi-similar hyponormal operators have equal spectra.References
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- Paul R. Halmos, A Hilbert space problem book, D. Van Nostrand Co., Inc., Princeton, N.J.-Toronto, Ont.-London, 1967. MR 0208368
- T. B. Hoover, Quasi-similarity of operators, Illinois J. Math. 16 (1972), 678–686. MR 312304 B. Sz.-Nagy and C. Foiaş, Analyse harmonique des opérateurs de l’espace de Hilbert, Masson, Paris; Akad. Kiadó, Budapest, 1967; English rev. transl., North-Holland, Amsterdam; American Elsevier, New York; Akad. Kiadó, Budapest, 1970. MR 37 #778; 43 #947.
Bibliographic Information
- © Copyright 1975 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 53 (1975), 88-90
- MSC: Primary 47B20
- DOI: https://doi.org/10.1090/S0002-9939-1975-0390824-7
- MathSciNet review: 0390824