F. Abdmouleh

Institut Suprieur de Gestion Industrielle de Sfax, University‎ ‎of Sfax‎, ‎Route de Tunis km 10‎, ‎Cite El Ons B.P 1164, 3021‎, ‎Sfax‎, ‎Tunisie.

[ 1 ] - Measure of non strict singularity of Schechter essential spectrum of two bounded operators and application

In this paper‎, ‎we discuss the essential spectrum of sum of two bounded operators‎ ‎using measure of non strict singularity‎. ‎Based on this new investigation‎, ‎a problem of one-speed neutron transport operator is presented‎.

[ 2 ] - Stability of essential spectra of bounded linear operators

In this paper‎, ‎we show the stability of Gustafson‎, ‎Weidmann‎, ‎Kato‎, ‎Wolf‎, ‎Schechter and Browder essential spectrum of bounded linear operators on Banach spaces which remain invariant under additive perturbations‎ ‎belonging to a broad classes of operators $U$ such $gamma(U^m)

نویسندگان همکار

I. Walha 1