Perturbation of semi-Browder linear relations by commuting Riesz operators
Hafsa Bouaniza, Yosra Chamkha, Maher Mnif · Linear and Multilinear Algebra · 2017
This paper is devoted to the investigation of the stability of upper semi-Browder, lower semi-Browder and Browder linear relations which satisfy the stabilization property, under commuting Riesz operator perturbations. As applications, we infer the invariance of the corresponding Browder’s essential approximate point spectrum, Browder’s essential defect spectrum and Browder’s essential spectrum under commuting Riesz operator perturbations.