Solution of Cauchy problems modulo flat functions
Séminaire Équations aux dérivées partielles (Polytechnique) dit aussi "Séminaire Goulaouic-Schwartz" (1974-1975), Exposé no. 11, 19 p. 
@article{SEDP_1974-1975____A10_0,
     author = {Treves, F.},
     title = {Solution of {Cauchy} problems modulo flat functions},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:11},
     pages = {1--19},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1974-1975},
     mrnumber = {410063},
     zbl = {0308.35083},
     language = {en},
     url = {http://www.numdam.org/item/SEDP_1974-1975____A10_0/}
}
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Treves, F. Solution of Cauchy problems modulo flat functions. Séminaire Équations aux dérivées partielles (Polytechnique) dit aussi "Séminaire Goulaouic-Schwartz" (1974-1975), Exposé no. 11, 19 p. http://www.numdam.org/item/SEDP_1974-1975____A10_0/

[1] Melin, A. and Sjöstrand, J. - Fourier integral operators with complex-valued phase functions, to appear. | MR | Zbl

[2] Treves, F. - Hypoelliptic partial differential equations of principal type. Sufficient conditions and necessary conditions. Comm. Pure Applied Math., vol. XXIV (1971), 631-670. | MR | Zbl

[3] Treves, F. - Approximate solutions to Cauchy problems, J. of Diff. Eq., Vol. 11 (1972), 349-363. | MR | Zbl

[4] Treves, F. - Local solvability in L2 of first order linear PDES, Amer. J. of Math., Vol XCII (1970), 369-380. | MR | Zbl