Propagation of singularities for semilinear weakly
hyperbolic differential equations
M. Dreher
Abstract.
We compare the singularities for solutions to linear and semilinear
weakly hyperbolic equations with sharp Levi conditions.
Proceedings of the Second ISAAC Congress
(Fukuoka 1999),
Int. Soc. Anal. Appl. Comput., Kluwer,
8
(2000),
1335-1344.
The paper is available here:
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