Solutions en grand temps d'équations d'ondes non linéaires
On montre que les solutions d’une équation de Schrödinger à coefficients variables dont le potentiel est non borné à l’infini dans un domaine extérieur est, localement en temps et en espace, fois plus régulière en espace que la donnée initiale.
In this paper we investigate the dispersive properties of the solutions of the two dimensional water-waves system with surface tension. First we prove Strichartz type estimates with loss of derivatives at the same low level of regularity we were able to construct the solutions in [3]. On the other hand, for smoother initial data, we prove that the solutions enjoy the optimal Strichartz estimates (i.e, without loss of regularity compared to the system linearized at ()).
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