A priori estimates and hypoelliptic operators with multiple characteristics
Doklady Akademii Nauk, Tome 187 (1969) no. 2, pp. 274-277
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@article{DAN_1969_187_2_a10,
author = {E. V. Radkevich},
title = {A priori estimates and hypoelliptic operators with multiple characteristics},
journal = {Doklady Akademii Nauk},
pages = {274--277},
publisher = {mathdoc},
volume = {187},
number = {2},
year = {1969},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_2_a10/}
}
E. V. Radkevich. A priori estimates and hypoelliptic operators with multiple characteristics. Doklady Akademii Nauk, Tome 187 (1969) no. 2, pp. 274-277. http://geodesic.mathdoc.fr/item/DAN_1969_187_2_a10/