SOME DESCRIPTION OF ESSENTIAL STRUCTURED APPROXIMATE AND DEFECT PSEUDOSPECTRUM

SOME DESCRIPTION OF ESSENTIAL STRUCTURED APPROXIMATE AND DEFECT PSEUDOSPECTRUM

In this paper, we introduce and study the structured essential approximate and defect pseudospectrum of closed, densely defined linear operators in a Banach space. Beside that, we discuss some results of stability and some properties of these essential pseudospectra. Finally, we will apply the resul...

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Veröffentlicht in:Korean Journal of mathematics 2020, Vol.28 (4), p.673-697
Hauptverfasser: Ammar, Aymen, Jeribi, Aref, Mahfoudhi, Kamel
Format: Artikel
Sprache:kor
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Zusammenfassung:In this paper, we introduce and study the structured essential approximate and defect pseudospectrum of closed, densely defined linear operators in a Banach space. Beside that, we discuss some results of stability and some properties of these essential pseudospectra. Finally, we will apply the results described above to investigate the essential approximate and defect pseudospectra of the following integro-differential transport operator.
ISSN:1976-8605
2288-1433