@article {14901,
	title = {On the characterization of some distinguishedclasses of Hilbert space operators},
	journal = {Acta Sci. Math. (Szeged)},
	volume = {84},
	year = {2018},
	pages = {611{\textendash}627},
	abstract = {In this note, we present several characterizations for some distinguishedclasses of bounded Hilbert space operators (self-adjoint operators, normaloperators, unitary operators, and isometry operators) in terms of operatorinequalities.},
	author = {Bouraya. C and Seddik. A}
}
