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Some advances on essential spectra of one sided operator matrix with application
  • Marwa Belghith,
  • Nedra Moalla,
  • Ines Walha
Marwa Belghith
University of Sfax Faculty of Sciences of Sfax
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Nedra Moalla
University of Sfax Faculty of Sciences of Sfax
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Ines Walha
University of Sfax Faculty of Sciences of Sfax
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Abstract

This paper deals with a new description of the one sided operator matrix form, as a generalization of the case of the unbounded operator matrix with the non diagonal domain, to investigate some advances in the analysis of some essential spectra under weaker hypotheses then the one provided in the works of [17, 33]. An example of differential equations is tested to ensure the validity of the abstract results.

Peer review status:UNDER REVIEW

01 Jan 2021Submitted to Mathematical Methods in the Applied Sciences
07 Jan 2021Assigned to Editor
07 Jan 2021Submission Checks Completed
17 Jan 2021Reviewer(s) Assigned