Corwin, Lawrence. "Necessary and sufficient conditions for hypoelliptic of certain left invariant operators on nilpotent Lie groups II.." Journal für die reine und angewandte Mathematik 355 (1984): 139-152. <http://eudml.org/doc/152690>.
@article{Corwin1984, author = {Corwin, Lawrence}, journal = {Journal für die reine und angewandte Mathematik}, keywords = {transversally elliptic; left invariant differential operator; microlocally hypoelliptic}, pages = {139-152}, title = {Necessary and sufficient conditions for hypoelliptic of certain left invariant operators on nilpotent Lie groups II.}, url = {http://eudml.org/doc/152690}, volume = {355}, year = {1984}, }
TY - JOUR AU - Corwin, Lawrence TI - Necessary and sufficient conditions for hypoelliptic of certain left invariant operators on nilpotent Lie groups II. JO - Journal für die reine und angewandte Mathematik PY - 1984 VL - 355 SP - 139 EP - 152 KW - transversally elliptic; left invariant differential operator; microlocally hypoelliptic UR - http://eudml.org/doc/152690 ER -