Perturbation of regular operators and th
โ
W. Arendt; A.R. Sourour
๐
Article
๐
1986
๐
Elsevier Science
โ 883 KB
For regular operators on a Banach lattice, we introduce and investigate two notions of order essential spectrum analogous to the essential spectrum and the Weyl spectrum for operators on Banach spaces. We also discuss related questions on the behaviour of the order spectrum under perturbation by r-c