Publié le : 1988-05-15
Classification:
35H05,
35A99
@article{1200780571,
author = {Akamatsu, Toyohiro},
title = {On some classes of nonhypoelliptic second order partial differential operators},
journal = {Osaka J. Math.},
volume = {25},
number = {1},
year = {1988},
pages = { 71-104},
language = {en},
url = {http://dml.mathdoc.fr/item/1200780571}
}
Akamatsu, Toyohiro. On some classes of nonhypoelliptic second order partial differential operators. Osaka J. Math., Tome 25 (1988) no. 1, pp. 71-104. http://gdmltest.u-ga.fr/item/1200780571/