%0 Journal Article %A A. A. Kirillov %A D. V. Yur'ev %T K\"ahler geometry of the infinite-dimensional homogeneous space $M=\operatorname{Diff}_+(S^1)/\operatorname{Rot}(S^1)$ %J Funkcionalʹnyj analiz i ego priloženiâ %D 1987 %P 35-46 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1987_21_4_a2/ %G ru %F FAA_1987_21_4_a2