TY - JOUR AU - E. A. Mirzakhanyan TI - On a theorem oi Hilbert space invariance under $K_0$-diffeomorphisms JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 1986 SP - 28 EP - 33 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_1986_2_a3/ LA - ru ID - UZERU_1986_2_a3 ER -