Electronic Journal of Differential Equations,
Vol. 2007(2007), No. 11, pp. 1-16.

Title: On the essential spectra of matrix operators and applications

Authors: Mondher Damak (Univ. de Sfax, Tunisie)
         Aref Jeribi   (Univ. de Sfax, Tunisie)

Abstract:
 In this paper, we investigate the essential spectra of some
 matrix operators on Banach spaces. The results obtained
 are used for describing the essential spectra of differential
 operators.
 
Submitted October 3, 2006. Published January 8, 2007.
Math Subject Classifications: 34L40, 47A11, 47A53, 47B50.
Key Words: Matrix operators; essential spectra; Fredholm perturbation.