TY  - JOUR
AU  - Masafumi Yoshino
TI  - A Class of Globally Hypoelliptic Operators on the Torus.
JO  - Mathematische Zeitschrift
PY  - 1989
SP  - 1
EP  - 12
VL  - 201
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1989__201_4_174029/
ID  - MZ_1989__201_4_174029
ER  -