Necessary conditions for strong hyperbolicity of first order systems
Matsumoto, Waichiro ; Yamahara, Hideo
Journées équations aux dérivées partielles, (1989), p. 1-16 / Harvested from Numdam
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@article{JEDP_1989____A8_0,
     author = {Matsumoto, Waichiro and Yamahara, Hideo},
     title = {Necessary conditions for strong hyperbolicity of first order systems},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     year = {1989},
     pages = {1-16},
     mrnumber = {90m:35113},
     zbl = {0703.35100},
     mrnumber = {1030823},
     language = {en},
     url = {http://dml.mathdoc.fr/item/JEDP_1989____A8_0}
}

Matsumoto, Waichiro; Yamahara, Hideo. Necessary conditions for strong hyperbolicity of first order systems. Journées équations aux dérivées partielles,  (1989), pp. 1-16. http://gdmltest.u-ga.fr/item/JEDP_1989____A8_0/

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