@article{JEDP_1988____A1_0, author = {Beals, Richard}, title = {Calcul pseudodiff\'erentiel trois-\'etape}, journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {1}, pages = {1--4}, publisher = {Ecole polytechnique}, year = {1988}, mrnumber = {975490}, zbl = {0661.35020}, language = {fr}, url = {http://www.numdam.org/item/JEDP_1988____A1_0/} }
Beals, Richard. Calcul pseudodifférentiel trois-étape. Journées équations aux dérivées partielles (1988), article no. 1, 4 p. http://www.numdam.org/item/JEDP_1988____A1_0/
1. Pseudodifferential operators associated to hyperplane bundles, Semin. Matem. Torino, 1983. | MR | Zbl
et ,2. Calculus on Heisenberg Manifolds, Annals of Math. Studies, Princeton Univ. Press, Princeton, 1988. | MR | Zbl
et ,3. A pseudodifferential calculus associated to 3-step nilpotent groups, Dissertation, Yale, 1988.
, .,4. Hypoelliptic differential operators and nilpotent groups, Acta Math. 137 (1976), 247-320. | MR | Zbl
et ,