On the Levi condition for Goursat problem
Hasegawa, Yukiko
J. Math. Kyoto Univ., Tome 27 (1987) no. 4, p. 1-25 / Harvested from Project Euclid
We consider the Goursat problem in the class of $C^{\infty}$-function. First, we consider the case of constant coefficients. We give a Levi’s condition which is analogous to A. Lax’s theorem [2] for the hyperbolic operator. Next, we consider the case of variable coefficients. In this case we give a sufficient condition for wellposedness of Goursat problem.
Publié le : 1987-05-15
Classification:  35A07,  35E20
@article{1250520761,
     author = {Hasegawa, Yukiko},
     title = {On the Levi condition for Goursat problem},
     journal = {J. Math. Kyoto Univ.},
     volume = {27},
     number = {4},
     year = {1987},
     pages = { 1-25},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1250520761}
}
Hasegawa, Yukiko. On the Levi condition for Goursat problem. J. Math. Kyoto Univ., Tome 27 (1987) no. 4, pp.  1-25. http://gdmltest.u-ga.fr/item/1250520761/