TY - JOUR AU - É. A. Mirzakhanyan TI - Some properties of infinitedimensional homotopic groups of subsets of Hilbert space JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 1999 SP - 17 EP - 24 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_1999_2_a2/ LA - ru ID - UZERU_1999_2_a2 ER -