%0 Journal Article %A V. N. Margaryan %A G. G. Kazaryan %T On the functional dimension of the solution space of hypoelliptic equations %J Sbornik. Mathematics %D 1982 %P 547-562 %V 43 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1982_43_4_a6/ %G en %F SM_1982_43_4_a6