CHARACTERISATIONS OF OPERATORS OF LOWER SEMI-FREDHOLM TYPE IN NORMED LINEAR SPACES

DOI10.1080/16073606.1992.9631681zbMath0787.47011OpenAlexW2085680904MaRDI QIDQ4030066

R. W. Cross, Louis E. Labuschagne

Publication date: 1 April 1993

Published in: Quaestiones Mathematicae (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/16073606.1992.9631681

zbMATH Keywords

closed rangeadjointfinite-dimensional kernel

Mathematics Subject Classification ID

(Semi-) Fredholm operators; index theories (47A53)

Related Items (9)

ON THE MINIMUM MODULUS OF AN ARBITRARY LINEAR OPERATOR ⋮ F₊-OPERATORS ARE TAUBERIAN ⋮ Quantities related to upper and lower semi-Fredholm type linear relations ⋮ Coperturbation function and lower semi-Browder multivalued linear operators ⋮ Spectral analysis of perturbed Fredholm operators ⋮ THE UNIQUENESS OF OPERATIONAL QUANTITIES IN VON NEUMANN ALGEBRAS ⋮ UBIQUITOUS PROPERTIES OF CERTAIN OPERATIONAL QUANTITIES OF LINEAR RELATIONS IN NORMED SPACES ⋮ Quantities related to the openness constant of linear operators ⋮ On a theorem of Kalton and Wilansky concerning Tauberian operators

Cites Work

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• On the perturbation of unbounded linear operators with topologically complemented ranges
• Perturbation classes of semi-Fredholm operators
• Properties of some norm related functions of unbounded linear operators
• Strictly cosingular operators on (DF)-spaces
• Semigroups of operators and measures of noncompactness
• THE INSTABILITY OF A CLASS OF UNBOUNDED NON-SEMI-FREDHOLM TYPE OPERATORS UNDER COMPACT PERTURBATIONS
• Some continuity properties of linear transformations in normed spaces
• ON THE MINIMUM MODULUS OF AN ARBITRARY LINEAR OPERATOR
• Characterisations of partially continuous, strictly cosingular and φ- type operators

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