Stability of Fredholm property for regular operators on Hilbert \(C^\)-modules

Stability of Fredholm property for regular operators on Hilbert \(C^\)-modules

We study the stability of Fredholm property for regular operators on Hilbert \(C^*\)-modules under some certain perturbations. We treat this problem when perturbing operators are (relatively) bounded or relatively compact. We also consider the perturbations of regular Fredholm operators in terms of...

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Veröffentlicht in:arXiv.org 2017-02
1. Verfasser: ough, Marzieh
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Modules
Operators
Stability
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description We study the stability of Fredholm property for regular operators on Hilbert \(C^*\)-modules under some certain perturbations. We treat this problem when perturbing operators are (relatively) bounded or relatively compact. We also consider the perturbations of regular Fredholm operators in terms of the gap metric. In particular, we prove that the space of all regular Fredholm operators on a Hilbert \(C^*\)-module \(E\) is open in the space of all regular operators on \(E\) with respect to the gap metric. As an application, we construct some continuous paths of selfadjoint regular Fredholm operators with respect to the gap metric.
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Operators
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title Stability of Fredholm property for regular operators on Hilbert \(C^\)-modules
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