A note on the Nirenberg example

MR1433908 Ninomiya, Haruki Haruki NINOMIYA A note on the Nirenberg example Funkcialaj Ekvacioj. Serio Internacia 39 1996 399--402 http://fe.math.kobe-u.ac.jp/FE/Free/vol39/fe39-3-3.pdf http://fe.math.kobe-u.ac.jp/FE/FE_pdf_with_bookmark/FE35-40-en_KML/fe39-399-402/fe39-399-402.pdf http://www.ams.org/mathscinet-getitem?mr=MR1433908 fe39-399-402 1996 A Note on the Nirenberg Example NINOMIYA, Haruki NINOMIYA, Haruki

1 Nagumo, M. Über das Anfangswertproblem partieller Differentialgleichungen Japan J. Math. 18 1942 41-47 Cache/Na/Nagumo,Differentialgleichungen,Japan*,1942,1943 MR0015186

2 Ninomiya, H. On local integrability conditions for nowhere-zero complex vector fields J. Math. Kyoto Univ. 33 1993 899-908 MR1251207 100 Cache/Ni/Ninomiya,integrability,J*,1993,1994

3 Ninomiya, H. Some remarks on the uniqueness in the Cauchy problem for a first order partial differential equation in two variables Memo. Osaka Inst. Tech., Series A Sci. & Tech. 19 1975 83-92 MR0427786 94 Cache/Ni/Ninomiya,uniqueness,Memo*,1975,1976

4 Nirenberg, L. Lectures on Linear Partial Differential Equations Reg. Conf. Series in Math. no 17, A. M. S. 1973 MR0450755 Cache/Ni/Nirenberg,Lectures,Reg*,1973,1974

5 Strauss, M.; Treves, F. First-order linear PDEs and uniqueness in the Cauchy problem J. Differential Equations 15 1974 195-209 MR0330739 100 Cache/St/Strauss,First-order,J*,1974,1975

6 Treves, F. Approximation and Representation of Functions and Distributions Annihilated by a System of Complex Vector Fields École Polytechnique Centre de Mathématiques 1981 MR0716137 100 Cache/tr/treves,Representation,*,1981,1982 ii+97