TY  - JOUR
AU  - Xuebo, Luo
TI  - Necessary and Sufficient Conditions for Hypoellipticity for a Class of Convolution Operators
JO  - Canadian journal of mathematics
PY  - 1994
SP  - 212
EP  - 224
VL  - 46
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-008-1/
DO  - 10.4153/CJM-1994-008-1
ID  - 10_4153_CJM_1994_008_1
ER  -