The gap between subspaces and perturbation of non-semi-Fredholm operators

DOI10.1017/S0004972700030264zbMath0785.47009OpenAlexW2118499067MaRDI QIDQ3987896

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Publication date: 28 June 1992

Published in: Bulletin of the Australian Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1017/s0004972700030264

zbMATH Keywords

stability property\(a\)-costable classes\(a\)-stable and non-\(a\)-stable classesclosed operators with closed rangeperturbation of subspaces

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05)

Related Items (5)

Applications of the minimum modulus function in operator algebras ⋮ TOPOLOGIES ON THE SET OF ALL SUBSPACES OF A BANACH SPACE AND RELATED QUESTIONS OF BANACH SPACE GEOMETRY ⋮ McIntosh formula for the gap between regular operators ⋮ CLASSES OF BANACH SPACES STABLE AND UNSTABLE WITH RESPECT TO THE OPENING ⋮ ON THE STABILITY OF THE DIFFERENTIAL PROCESS GENERATED BY COMPLEX INTERPOLATION

Cites Work

• On the instability of non-semi-Fredholm operators under compact perturbations
• Banach spaces X with \(X^{**}\) separable
• The instability of non-semi-Fredholm operators under compact perturbations
• Uniformly non-square Banach spaces
• Quasi-Reflexive Spaces
• On properties of the opening and related closeness characterizations of Banach spaces
• On the instability of non-semi-Fredholm closed operators under compact perturbations with applications to ordinary differential operators
• Twisted Sums of Sequence Spaces and the Three Space Problem
• On a Convexity Condition in Normed Linear Spaces
• On the Space of Subspaces of a Banach Space
• Unnamed Item

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