TY  - JOUR
AU  - G. G. Kazaryan
AU  - V. N. Markaryan
TI  - Lower bounds for the~functional dimension of the solution space of hypoelliptic operators
JO  - Sbornik. Mathematics
PY  - 1991
SP  - 341
EP  - 353
VL  - 70
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1991_70_2_a1/
LA  - en
ID  - SM_1991_70_2_a1
ER  -