Hörmander, Lars Subelliptic operators. (English) Zbl 0446.35086 Seminar on singularities of solutions of linear partial differential equations, Inst. Adv. Study, Princeton 1977-78, Ann. Math. Stud. 91, 127-208 (1979). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 11 Documents MSC: 35S05 Pseudodifferential operators as generalizations of partial differential operators 47F05 General theory of partial differential operators 47Gxx Integral, integro-differential, and pseudodifferential operators Keywords:subelliptic operators; pseudo differential operators; necessary and sufficient conditions for subellipticity; Hamiltonian vector field Citations:Zbl 0398.00008; Zbl 0195.146; Zbl 0309.35067; Zbl 0309.35068 PDFBibTeX XML