Stability of unicellularity for analytic perturbations of class \(\Omega^+_0\)

DOI10.1007/BF01099671zbMath0277.47011OpenAlexW2053769558MaRDI QIDQ1393839

Nikolai Nikolski

Publication date: 1974

Published in: Journal of Soviet Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01099671

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) Invariant subspaces of linear operators (47A15) Special classes of linear operators (47B99) Canonical models for contractions and nonselfadjoint linear operators (47A45) Linear accretive operators, dissipative operators, etc. (47B44)

Cites Work

• Description of contraction operators which are similar to unitary operators
• Invariant subspaces of completely continuous operators

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