@article{SEDP_1971-1972____A13_0, author = {Unterberger, A.}, title = {Probl\`emes de convexit\'e pour les op\'erateurs diff\'erentiels \`a coefficients constants}, journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"}, note = {talk:13}, publisher = {Ecole Polytechnique, Centre de Math\'ematiques}, year = {1971-1972}, zbl = {0242.35009}, mrnumber = {477411}, language = {fr}, url = {http://www.numdam.org/item/SEDP_1971-1972____A13_0/} }