A characterization of S-condition pseudospectrum of multivalued linear operators
Aymen Ammar, Aref Jeribi, Mayssa Zayed · Filomat · 2019
The main goal of this paper, is to extend the concept of condition pseudospectrum to the case of closed linear relations pencils and to reveal some of their properties. We will start by giving the definition and then we will focus on the characterization and some results concerning these pseudospectra.