Congruent spectrum for compact linear relations
MOHAMED AYEDI, Hamadi Baklouti · Publicationes Mathematicae Debrecen · 2015
This paper is a new investigation in the analysis of linear multivalued operators.We introduce the class of congruent linear relations, and we develop the spectral analysis associated with this class.Mainly, we characterize the congruent spectrum for a compact linear relation on a Banach space.Also, we prove the closeness of some classes of linear relations under compact perturbation.