Criteria for stability of the point spectrum under completely continuous perturbations

DOI10.1007/BF01153050zbMath0322.47012MaRDI QIDQ1223818

L. N. Nikol'skaya

Publication date: 1976

Published in: Mathematical Notes (Search for Journal in Brave)

Mathematics Subject Classification ID

Riesz operators; eigenvalue distributions; approximation numbers, (s)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators (47B06) Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53)

Cites Work

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• Irreducible operators
• On operator ranges
• Perturbations of the Shift
• Note on a theorem of Murray

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