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Solvability of Sylvester operator equation with bounded subnormal operators in Hilbert spacesLourabi Hariz Bekkar, Abdelouahab MansourKorean Journal of MathematicsVolume 27، (2)، Pages 515-5232019Article Open access
Fixed point theorem for generalized set-valued contractions on partial metric spaceAbdelouahab Mansour, Djedidi Mostapha, Khadra NachiTamkang Journal of MathematicsVolume 48، (4)، Pages 331-3442017Article Open access 2
Subnormality of the weighted Ces\`aro operator $ C_h \in l^2(h) $Abderazak Hechifa, Abdelouahab MansourKorean Journal of MathematicsVolume 25، (1)، Pages 117-1262017Article Open access