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Relationship between the left-right Jeribi essential spectra and the left-right Weyl essential spectra of closed densely defined linear operators. (English) Zbl 1499.47006

Summary: In the present paper, we introduce and study the notion of the left-right Jeribi essential spectra, and we characterize the left-right Weyl essential spectra of closed densely de ned linear operators. Furthermore, we apply the obtained results to study the transport equation.

MSC:

47A10 Spectrum, resolvent
47A53 (Semi-) Fredholm operators; index theories
47A55 Perturbation theory of linear operators
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