Mathematics – Analysis of PDEs
Scientific paper
2009-06-17
Mathematics
Analysis of PDEs
Submitted
Scientific paper
We investigate the initial value problem for some energy supercritical
semilinear wave equations. We establish local existence in suitable spaces with
continuous flow. We also obtain some ill-posedness/weak ill-posedness results.
The proof uses the finite speed of propagation and a quantitative study of the
associated ODE. It does not require any scaling invariance of the equation.
Ibrahim Slim
Majdoub Mohamed
Masmoudi Nader
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