TY - JOUR AU - M. A. Baidak AU - M. Sh. Braverman AU - Yu. I. Petunin TI - Additivity of the variance is a characteristic property of the Hilbert space $L_2(\Omega,A,\mu)$ JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1983 SP - 66 EP - 68 VL - 17 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1983_17_3_a9/ LA - ru ID - FAA_1983_17_3_a9 ER -