%0 Journal Article %A O. V. Schwarzman %T Simple-connectivity of a factor-space of the modular Hilbert group %J Funkcionalʹnyj analiz i ego priloženiâ %D 1974 %P 99-100 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1974_8_2_a27/ %G ru %F FAA_1974_8_2_a27