Propagation of wave front set in Gevrey class for an example of hyperbolic system
Propagation of wave front set in Gevrey class for an example of hyperbolic system
In this paper we show, for an example of hyperbolic system, that the wave front set in Gevrey class of a certain solution propagates precisely along “generalized broken null-bicharacteristic flow” defined by Kumano-go-Taniguchi [7] and Wakabayashi [10] [11].