2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76219We use the Littlewood-Paley decomposition technique to obtain a $C^\infty$-well-posedness result for a weakly hyperbolic equation with a finite order of degeneration10 pagesAnalysis of PDEs35L15A dyadic decomposition approach to a finitely degenerate hyperbolic problemtext