On the Essential Spectrum of Symmetrizable Operators.
J.I. NIETO (1968)
Mathematische Annalen
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Displaying similar documents to “On the essential spectrum of Dirac operators with spherically symmetric potentials.”
On the Essential Spectrum of Symmetrizable Operators.
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Note to the paper by R. Hempel, A. M. Hinz, and H. Kalf: On the Essential Spectrum of Schrödinger Operators with Spherically Symmetric Potentials.
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The Hatcher-Waldhausen map is a spectrum map.
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John Ernest (1975)
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Shmuel Kantorovitz (1981)
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On the generalized Kato spectrum
Benharrat, Mohammed, Messirdi, Bekkai (2011)
Serdica Mathematical Journal
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2010 Mathematics Subject Classification: 47A10. We show that the symmetric difference between the generalized Kato spectrum and the essential spectrum defined in [7] by sec(T) = {l О C ; R(lI-T) is not closed } is at most countable and we also give some relationship between this spectrum and the SVEP theory.