Title of article :
Measure of non strict singularity of Schechter essential spectrum of two bounded operators and application
Author/Authors :
Abdmouleh ، F. - University of Sfax , Walha ، I. - University of Sfax
Abstract :
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 onespeed neutron transport operator is presented.
Keywords :
Fredholm operators , lower (respectively upper) semi , Fredholm operators , essential spectrum , measure of non , strict , singularity , one , speed neutron transport operator.
Journal title :
Bulletin of the Iranian Mathematical Society
Journal title :
Bulletin of the Iranian Mathematical Society