Introduction
Fundamentals
Spectra
Perturbation of Unbounded Linear Operators by Relative Boundedness
Essential Spectra
S-Essential Spectra of Closed Linear Operator on a Banach Space
S-Essential Spectrum and Measure of Non-Strict-Singularity
S-Pseudospectra and Structured S-Pseudospectra
Structured Essential Pseudospectra
Structured Essential Pseudospectra and Measure of Noncompactness
A Characterization of the Essential Pseudospectra
Conditional Pseudospectra
Biography
Aref Jeribi, PhD, is Professor in the Department of Mathematics at the University of Sfax, Tunisia. He is the author of the book Spectral Theory and Applications of Linear Operators and Block Operator Matrices (2015) and co-author of the book Nonlinear Functional Analysis in Banach Spaces and Banach Algebras: Fixed Point Theory under Weak Topology for Nonlinear Operators and Block Operator Matrices with Applications (CRC Press, 2015). He has published many journal articles in international journals. His areas of interest include spectral theory, matrice operators, transport theory, Gribov operator, Bargman space, fixed point theory, Riesz basis, and linear relations.
