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http://dx.doi.org/10.4134/BKMS.b150233

ON RELATIVE ESSENTIAL SPECTRA OF BLOCK OPERATOR MATRICES AND APPLICATION

Charfi, Salma (Faculty of Sciences of Sfax Department of Mathematics)
Walha, Ines (Faculty of Sciences of Sfax Department of Mathematics)

Publication Information

Bulletin of the Korean Mathematical Society / v.53, no.3, 2016 , pp. 681-698 More about this Journal

Abstract

In this paper, we investigate relative essential spectra of $2{\times}2$ block operator matrix using the Fredholm perturbation theory. Furthermore, an example for two-group transport equations is presented to illustrate the validity of the main results.

Keywords

matrix operator; Fredholm perturbations; M-essential spectra; transport operator;

Citations & Related Records

Reference

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