共 50 条
- [45] Global solvability and global hypoellipticity for a class of complex vector fields on the 3-torus Journal of Pseudo-Differential Operators and Applications, 2015, 6 : 341 - 360
- [46] HYPOELLIPTICITY FOR SOME INFINITELY DEGENERATE ELLIPTIC-OPERATORS OF 2ND-ORDER JOURNAL OF MATHEMATICS OF KYOTO UNIVERSITY, 1992, 32 (02): : 373 - 386
- [49] GLOBAL HYPOELLIPTICITY OF A CLASS OF 2ND-ORDER OPERATORS CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 1994, 37 (03): : 301 - 305
- [50] ANALYTIC HYPOELLIPTICITY FOR OPERATORS WITH SYMPLECTIC CHARACTERISTICS JOURNAL OF MATHEMATICS OF KYOTO UNIVERSITY, 1985, 25 (03): : 489 - 514