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The gap between subspaces and perturbation of non-semi-Fredholm operators
Published online by Cambridge University Press: 17 April 2009
Abstract
We study a concept of stability under the gap of isomorphic properties of Banach spaces and apply it to obtain some results of stability under compact or small norm perturbation for non-semi-Fredholm operators with closed range.
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- Copyright © Australian Mathematical Society 1992
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