20 Aug 2026Open access
Generalized Reid inequalities and numerical radius bounds via block operator matricesPublisher siteJournal of Inequalities and Applications, Mathematical Inequalities and Applications
UniversitiesKais Feki
Active, last published 2026
In matrix theory and algorithms
Kais
Feki
Scholar“Research focused on Matrix Theory and Algorithms and adjacent fields.”
Najran University
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01 · About the work
What I study
ais Feki is a researcher working on Matrix Theory and Algorithms. A fuller summary will appear once they update their profile.
02 · Reach
Publication output and reach
Kais's work has been cited 585 times across 2 active years. Bars show publications per year; the line shows cumulative citation totals across publications first appearing in each year.
03 · Research focus
Topics
Matrix Theory and Algorithms×71Mathematical Inequalities and Applications×69Holomorphic and Operator Theory×60Spectral Theory in Mathematical Physics×25Numerical methods in inverse problems×12
04 · Where I am
Affiliations
Affiliation on published researchNajran UniversityDrawn from the institution listed on this researcher’s published work.
05 · Selected work
Recent publications
3 works12 Mar 2026Open access
Bessel-type inequalities in semi-Hilbert spaces with applications to operator tuplesPublisher siteJournal of Inequalities and Applications, Mathematical Inequalities and Applications
1 Jan 2024Open access
A note on the generalized maximal numerical range of operatorsPublisher siteFilomat, Approximation Theory and Sequence Spaces
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