Structural properties of 2-C-normal operators
Messaoud Guesba، Ismail Lakehal، Sid Ahmed Ould Ahmed Mahmoud
2025ما قبل الطبع وصول مفتوح
المُخرَجات البحثية
On the Fourier coefficients of the derivative with respect to celebrated orthogonal systems
Weighted Hilbert-Schmidt Numerical Radius Inequalities for $$2\times 2$$ Operator Matrices
Messaoud Guesba، Fuad Kıttaneh
On A-numerical radius inequalities of semi-Hilbert space operators
Messaoud Guesba، Mohammad Sababheh
A-Numerical Radius of Semi-Hilbert Space Operators
Messaoud Guesba، Pintu Bhunia، Kallol Paul
Joint A-hyponormality of operators in semi-Hilbert spaces
Messaoud Guesba، El Moctar Ould Beiba، Sid Ahmed Ould Ahmed Mahmoud
On the classes of $n$-Nadir's and $n^*$-Nadir's operators on Hilbert spaces
A. Smati، Messaoud Guesba
On some inequalities for numerical radius of semi-Hilbert space multioperators
Messaoud Guesba، Sid Ahmed Ould Ahmed Mahmoud
A-numerical radius inequalities and A-translatable radii of semi-Hilbert space operators
Messaoud Guesba، Pintu Bhunia، Kallol Paul
Some generalizations of A-numerical radius inequalities for semi-Hilbert space operators
On some numerical radius inequalities for normal operators in Hilbert spaces
Solvability of Sylvester operator equation with bounded subnormal operators in Hilbert spaces
Lourabi Hariz Bekkar، Abdelouahab Mansour
Daugavet’s equation and Jordan elementary operators
Zakaria Taki، Mohamed Chraïbi Kaadoud، Messaoud Guesba
The notion of $$\infty $$-invertibility and $$\infty $$-isometric operators
Berezin Number Inequalities for Sums and Products of Operators and Applications
Messaoud Guesba، Fuad Kıttaneh
Refinements of some inequalities involving Berezin norms and Berezin number and related questions
Mübariz Garayev، Messaoud Guesba
Refinements of some Berezin number inequalities and related questions
Ulaş Yamancı، Messaoud Guesba
Some Euclidean Berezin number inequalities of a pair of operators and their applications
Improved bounds for the numerical radius via Maligranda inequality
Amar Ghris، Abdelouahab Manour
Estimates for the Berezin number inequalities
Messaoud Guesba، Mübariz Garayev