On the 2 by 2 weakly hyperbolic systems
D'Ancona, Piero ; Kinoshita, Tamotu ; Spagnolo, Sergio
Osaka J. Math., Tome 45 (2008) no. 1, p. 921-939 / Harvested from Project Euclid
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We study the wellposedness in the Gevrey classes $\gamma^{s}$ and in $C^{\infty}$ of the Cauchy problem for 2 by 2 weakly hyperbolic systems. In this paper we shall give some conditions to the case that the characteristic roots oscillate rapidly and vanish at an infinite number of points.
Publié le : 2008-12-15
Classification:  35L45,  35L80 
@article{1227708826,
     author = {D'Ancona, Piero and Kinoshita, Tamotu and Spagnolo, Sergio},
     title = {On the 2 by 2 weakly hyperbolic systems},
     journal = {Osaka J. Math.},
     volume = {45},
     number = {1},
     year = {2008},
     pages = { 921-939},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1227708826}
}

D'Ancona, Piero; Kinoshita, Tamotu; Spagnolo, Sergio. On the 2 by 2 weakly hyperbolic systems. Osaka J. Math., Tome 45 (2008) no. 1, pp.  921-939. http://gdmltest.u-ga.fr/item/1227708826/