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Published in 2019 at "Complex Analysis and Operator Theory"
DOI: 10.1007/s11785-020-00981-9
Abstract: In this paper we explore some characteristics of the quasi-Fredholm resolvent set $$\rho _{qf}(T)$$ ρ qf ( T ) of an operator T defined on an infinite dimensional Banach space X . Moreover, in the…
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Keywords:
spectrum compact;
compact perturbations;
fredholm spectrum;
quasi fredholm ... See more keywords