%0 Journal Article %T On the essential spectra of matrix operators and applications %A Mondher Damak %A Aref Jeribi %J Electronic Journal of Differential Equations %D 2007 %I Texas State University %X 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. %K Matrix operators %K essential spectra %K Fredholm perturbation. %U http://eje/math.txstate.edu/Volumes/2007/11/abstr.html