Szerző: " Skhiri Haïkel"

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Skhiri Haïkel: On the essential minimum modulus of linear operators in Banach spaces. In: Acta scientiarum mathematicarum, (82) 1-2. pp. 147-164. (2016)

Skhiri Haïkel: A Mbekhta's conjecture for reduced minimum modulus preserving. In: Acta scientiarum mathematicarum, (74) 3-4. pp. 853-862. (2008)

Skhiri Haïkel: Structure of semi-Fredholm operators with fixed nullity. In: Acta scientiarum mathematicarum, (63) 3-4. pp. 607-622. (1997)