On the perturbation of semi-Fredholm relations with complemented ranges and null spaces |
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| Authors: | Teresa Álvarez |
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| Affiliation: | 1. Department of Mathematics, University of Oviedo, 33007, Oviedo, Asturias, Spain
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| Abstract: | Multivalued semi-Fredholm type linear operators with complemented ranges and null spaces are introduced. Conditions are obtained under which the classes given are stable under compact, strictly singular and strictly cosingular additive perturbations. |
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| Keywords: | Left-Atkinson relation right-Atkinson relation strictly singular strictly cosingular perturbation |
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