TY - JOUR AU - Dragomir, S.S. TI - Ostrowski’s type inequalities for complex functions defined on unit circle with applications for unitary operators in Hilbert spaces JO - Archivum mathematicum PY - 2015 SP - 233 EP - 254 VL - 51 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5817/AM2015-4-233/ DO - 10.5817/AM2015-4-233 LA - en ID - 10_5817_AM2015_4_233 ER -