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Showing results 1 to 4 of 4
Issue Date
Title
Author(s)
2016
Ascent and essential ascent spectrum of linear relations
Chafai, Ezzeddine
;
Mnif, Maher
;
Université de Sfax. Túnez
2009
Browder and semi-Browder operators and perturbation function
Fakhfakh, Fatma
;
Mnif, Maher
;
Université de Sfax. Túnez
2014
Descent and essential descent spectrum of linear relations
Chafai, Ezzeddine
;
Mnif, Maher
;
Université de Sfax. Túnez
2011
Invariance of the schechter essential spectrum under polynomially compact operators perturbation
Abdelmoumen, Boulbeba
;
Jeribi, Aref
;
Mnif, Maher
;
Université de Sfax. Túnez