TY - JOUR AU - A. I. Shnirel'man TI - On the geometry of the group of diffeomorphisms and the dynamics of an ideal incompressible fluid JO - Sbornik. Mathematics PY - 1987 SP - 79 EP - 105 VL - 56 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1987_56_1_a5/ LA - en ID - SM_1987_56_1_a5 ER -