Abstract
We use the Littlewood-Paley decomposition technique to obtain a C∞-well-posedness result for a weakly hyperbolic equation with a finite order of degeneration.
Keywords: Littlewood-Paley decomposition, Hyperbolic equations, C∞-well-posedness, Approximate energy method
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Cicognani, M., Santo, D.D. & Reissig, M. A dyadic decomposition approach to a finitely degenerate hyperbolic problem. Ann. Univ. Ferrara 52, 281–289 (2006). https://doi.org/10.1007/s11565-006-0021-6
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DOI: https://doi.org/10.1007/s11565-006-0021-6