Journal Papers
Journal Papers
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13-Complex symmetric operators and additive preservers problem
13-Complex symmetric operators and additive preservers problem
Z. Amara, M. Oudghiri and K. Souilah, Advances in Operator Theory, 2019.
https://www.emis.de/journals/AOT/
12-Nonlinear maps preserving Drazin invertible operators of bounded index
12-Nonlinear maps preserving Drazin invertible operators of bounded index
M. Oudghiri and K. Souilah, Quaestiones Mathematicae, 2019.
https://www.tandfonline.com/loi/tqma20
11-Ascent, descent and additive preserving problems
11-Ascent, descent and additive preserving problems
M. Oudghiri and K. Souilah, Studia Universitatis Babeş-Bolyai Mathematica, vol. 64, 2019, 565-580 .
https://www.cs.ubbcluj.ro/~studia-m/index.php/journal/article/view/430
10-The perturbation class of algebraic operators and applications
10-The perturbation class of algebraic operators and applications
M. Oudghiri and K. Souilah, Annals of Functional Analysis, vol. 9, 2018, 426-434.
https://doi.org/10.1215/20088752-2017-0057
9-Linear preservers of the essential ascent and essential descent
9-Linear preservers of the essential ascent and essential descent
M. Oudghiri and K. Souilah, Rendiconti del Circolo Matematico di Palermo, Second Series, vol. 67, 2018, 227-232.
https://link.springer.com/article/10.1007/s12215-017-0309-7
8-A generalization of strongly preserver problems of Drazin invertibility
8-A generalization of strongly preserver problems of Drazin invertibility
M. Oudghiri and K. Souilah, Acta Mathematica Vietnamica, vol. 43, 2018, 575-583.
https://doi.org/10.1007/s40306-018-0251-6
7-Nonlinear preservers of group invertible operators
7-Nonlinear preservers of group invertible operators
M. Oudghiri and K. Souilah, Asian-European Journal of Mathematics, vol. 11, 2017, 13 pages.
https://doi.org/10.1142/S179355711850002X
6-Additive preservers of Drazin invertible operators with bounded index
6-Additive preservers of Drazin invertible operators with bounded index
M. Oudghiri and K. Souilah, Acta Mathematicae Sinica, English Series, vol. 33, 2017, 1225-1241.
https://link.springer.com/article/10.1007/s10114-017-6534-3
5-Additive maps preserving Drazin-invertible operators of index n
5-Additive maps preserving Drazin-invertible operators of index n
M. Mbekhta, M. Oudghiri and K. Souilah, Banach Journal of Mathematical Analysis, vol. 11, 2017, 416-437.
https://projecteuclid.org/euclid.bjma/1489802494
4-Linear preservers of quadratic operators
4-Linear preservers of quadratic operators
M. Oudghiri and K. Souilah, Mediterranean Journal of Mathematics, vol. 13, 2016, 4929-4938.
https://link.springer.com/article/10.1007/s00009-016-0783-8
3-Non-linear maps preserving singular algebraic operators
3-Non-linear maps preserving singular algebraic operators
M. Oudghiri and K. Souilah, Proyecciones Journal of Mathematics, vol. 35, 2016, 301-316.
https://dx.doi.org/10.4067/S0716-09172016000300007
2-Additive maps preserving Drazin invertible operators of index one
2-Additive maps preserving Drazin invertible operators of index one
M. Mbekhta, M. Oudghiri and K. Souilah, Mathematical Proceedings of the Royal Irish Academy, vol. 116A, 2016, 19-34.
https://www.jstor.org/stable/10.3318/pria.2016.116.02
1- On additive preservers of certain classes of algebraic operators
1- On additive preservers of certain classes of algebraic operators
K. Souilah, Extracta Mathematicae, vol. 30, 2015, 207-220.
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