Essentially normal \(+\) small compact \(=\) strongly irreducible

zbMath0892.47024MaRDI QIDQ1377230

Youging Ji, Chun Lan Jiang, Zong Yao Wang

Publication date: 3 August 1998

Published in: Chinese Annals of Mathematics. Series B (Search for Journal in Brave)

zbMATH Keywords

Fredholm operatorcompact operatoressentially normalstrongly irreduciblenontrivial idempotent

Mathematics Subject Classification ID

Subnormal operators, hyponormal operators, etc. (47B20) Perturbation theory of linear operators (47A55) Approximation by polynomials (41A10)

Related Items (4)

Quasitriangular $+$ small compact $=$ strongly irreducible ⋮ Operators with connected spectrum + compact operators = strongly irreducible operators ⋮ On a factorization of operators as a product of an essentially unitary operator and a strongly irreducible operator ⋮ Small compact perturbation of strongly irreducible operators.

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