TY - JOUR AU - I. Ts. Gokhberg AU - M. G. Krein TI - Multiplicative representation of the characteristic functions of operators close to unitary JO - Doklady Akademii Nauk PY - 1965 SP - 732 EP - 735 VL - 164 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1965_164_4_a2/ LA - ru ID - DAN_1965_164_4_a2 ER -