Home › Researcher directory › Ezzeddine Chafai
Ezzeddine Chafai
Affiliation : University of Sfax · Faculty of Sciences of Sfax · University of Sousse
- 9Publications (affiliation in Tunisia)
- 12Total publications
- 47Citations
- 4h-index
Research profile
Ezzeddine Chafai has 9 indexed publications (2013–2026). Their work appears mainly in “Filomat”, “Mathematica Pannonica” and “Mediterranean Journal of Mathematics”. Their most cited article, “Perturbation of normally solvable linear relations in paracomplete spaces” (2013), has been cited 16 times. 2 of these publications date from the last three years of activity. Their work is co-authored with at least 2 researchers, including institutions in Saudi Arabia, Morocco.
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Create my free profile Add my publicationsResearch areas
- Advanced Banach Space Theory
- Holomorphic and Operator Theory
- Spectral Theory in Mathematical Physics
- Fixed Point Theorems Analysis
- Nonlinear Differential Equations Analysis
Publications (9)
- Perturbation Functions Characterizing Semi-Fredholm Multivalued Operators
- Multivalued operators with finite essential ascent or essential descent and perturbations
- Finite Rank and Small Perturbations of Linear Relations
- Some perturbation results for ascent and descent via measure of non-compactness
- On a Rational Function in a Linear Relation
- On the essential spectrum of the diagonal of an operator
- Ascent, essential ascent, descent and essential descent for a linear relation in a linear space
- Spectral mapping theorem for ascent, essential ascent, descent and essential descent spectrum of linear relations
- Perturbation of normally solvable linear relations in paracomplete spaces
Publication venues
- Filomat × 3
- Mathematica Pannonica × 1
- Mediterranean Journal of Mathematics × 1
- Bulletin of the Malaysian Mathematical Sciences Society × 1
- Linear and Multilinear Algebra × 1
- Acta Mathematica Scientia × 1
Publications per year
- 20261
- 20241
- 20184
- 20171
- 20141
- 20131
Collaborations
Partner institutions : Prince Sattam Bin Abdulaziz University · Université Ibn Zohr
Co-authors’ countries : Saudi Arabia · Morocco
Co-authors
Bibliographic data from OpenAlex (open database).
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