Citation:
Bouraya C, Ameur S. On the characterizations of some distinguished subclasses of Hilbert space operators. Acta Scientiarum MathematicarumActa Scientiarum Mathematicarum. 2018;84 :611-627.
Date Published:
2018Abstract:
In this note, we present several characterizations for some distinguished classes of bounded Hilbert space operators (self-adjoint operators, normal operators, unitary operators, and isometry operators) in terms of operator inequalities.