Berezin number inequalities for 2 × 2 operator matrices and applicationsMessaoud Guesba، Fuad KıttanehQuaestiones Mathematicaeالمجلّد 49، (4)، الصفحات 451-4722025مقال وصول مغلق
Sharp bounds for the Berezin number of $$2\times 2$$ operator matrices with applicationsMessaoud Guesba، Cristian CondeActa Scientiarum Mathematicarum2025مقال وصول مغلق 1
Weighted Hilbert-Schmidt Numerical Radius Inequalities for $$2\times 2$$ Operator MatricesMessaoud Guesba، Fuad KıttanehComplex Analysis and Operator Theoryالمجلّد 20، (1)2025مقال وصول مغلق
Weighted Berezin number inequalities for $$2\times 2$$ operator matricesMessaoud Guesba، Somdatta Barik، Kallol PaulArabian Journal of Mathematicsالمجلّد 15، (1)، الصفحات 205-2252025مقال وصول مغلق 1
Structural properties of 2-C-normal operatorsMessaoud Guesba، Ismail Lakehal، Sid Ahmed Ould Ahmed Mahmoud2025ما قبل الطبع وصول مفتوح
The notion of $$\infty $$-invertibility and $$\infty $$-isometric operatorsSouhaib Djaballah، Messaoud GuesbaActa Scientiarum Mathematicarumالمجلّد 92، (1-2)، الصفحات 109-1242025مقال وصول مغلق
On the classes of $n$-Nadir's and $n^*$-Nadir's operators on Hilbert spacesA. Smati، Messaoud GuesbaCarpathian Mathematical Publicationsالمجلّد 17، (1)، الصفحات 137-1452025مقال وصول مفتوح
A new generalization of the class of $$m-$$symmetric operatorsSouhaib Djaballah، Messaoud GuesbaANNALI DELL UNIVERSITA DI FERRARAالمجلّد 71، (2)2025مقال وصول مغلق 1
Further Berezin Number and Berezin Norm Inequalities for Sums and Products of OperatorsMessaoud Guesba، Somdatta Barik، Kallol PaulComplex Analysis and Operator Theoryالمجلّد 19، (2)2025مقال وصول مغلق 4
Some results on polynomially Drazin normal operatorsSid Ahmed Ould Ahmed Mahmoud، Messaoud Guesba، Naeem AhmadBollettino Della Unione Matematica Italianaالمجلّد 18، (4)، الصفحات 1095-11102025مقال وصول مغلق 1
Bounds for the Berezin number inequalities of 2 × 2 operator matrices and applicationsMessaoud Guesba، Mubariz T. GarayevFilomatالمجلّد 39، (25)، الصفحات 8635-86492025مقال وصول مفتوح 1
Some New Berezin Number Inequalities for $$2\times 2$$ Operator MatricesMessaoud Guesba، Fuad Kıttaneh، Ulaş YamancVietnam Journal of Mathematicsالمجلّد 54، (3)، الصفحات 581-5932024مقال وصول مغلق 3
Estimates for the Berezin number inequalitiesMessaoud Guesba، Mübariz GarayevJournal of Pseudo-Differential Operators and Applicationsالمجلّد 15، (2)2024مقال وصول مغلق 12
Berezin Number Inequalities for Sums and Products of Operators and ApplicationsMessaoud Guesba، Fuad KıttanehLobachevskii Journal of Mathematicsالمجلّد 45، (3)، الصفحات 1086-10962024مقال وصول مغلق 9
FURTHER BEREZIN NUMBER INEQUALITIES OF OPERATOR MATRICESMessaoud Guesba، Ulaş YamancıFacta Universitatis Series Mathematics and Informatics2023مقال وصول مفتوح
Refinements of some inequalities involving Berezin norms and Berezin number and related questionsMübariz Garayev، Messaoud GuesbaANNALI DELL UNIVERSITA DI FERRARAالمجلّد 70، (2)، الصفحات 381-4032023مقال وصول مغلق 9
On a class of Drazin invertible operators for which $$\left( S^{*}\right) ^{2}\left( S^{D}\right) ^{2}=\left( S^{*}S^{D}\right) ^{2}$$Messaoud Guesba، Sid Ahmed Ould Ahmed MahmoudThe Journal of Analysisالمجلّد 32، (2)، الصفحات 1093-11092023مقال وصول مغلق 2
Some Euclidean Berezin number inequalities of a pair of operators and their applicationsMessaoud GuesbaFilomatالمجلّد 37، (26)، الصفحات 8777-87902023مقال وصول مفتوح 14
Refinements of some Berezin number inequalities and related questionsUlaş Yamancı، Messaoud GuesbaThe Journal of Analysisالمجلّد 31، (1)، الصفحات 539-5492022مقال وصول مغلق 18
A note on the maximal numerical range of operators for a sesquilinear formMessaoud Guesba، Mohamed Chraïbi Kaadoud، Abderrahim BaghdadJournal of Interdisciplinary Mathematicsالمجلّد 25، (4)، الصفحات 1117-11262022مقال وصول مغلق