A necessary and sufficient condition for the hyperbolicity of second order equations with two independent variables
Nishitani, Tatsuo
J. Math. Kyoto Univ., Tome 24 (1984) no. 4, p. 91-104 / Harvested from Project Euclid
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Publié le : 1984-05-15
Classification:  35L10 
@article{1250521387,
     author = {Nishitani, Tatsuo},
     title = {A necessary and sufficient condition for the hyperbolicity of second order equations with two independent variables},
     journal = {J. Math. Kyoto Univ.},
     volume = {24},
     number = {4},
     year = {1984},
     pages = { 91-104},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1250521387}
}

Nishitani, Tatsuo. A necessary and sufficient condition for the hyperbolicity of second order equations with two independent variables. J. Math. Kyoto Univ., Tome 24 (1984) no. 4, pp.  91-104. http://gdmltest.u-ga.fr/item/1250521387/