Local and Global Well-Posedness for the Critical Schrodinger-Debye System

Details Local and Global Well-Posedness for the Critical Schrodinger-Debye System Local and Global Well-Posedness for the Critical Schrodinger-Debye System

2011-02-14

arxiv.org/abs/1102.2874v2

Mathematics

Analysis of PDEs

Scientific paper

We establish local well-posedness results for the Initial Value Problem associated to the Schr\"odinger-Debye system in dimensions $N=2, 3$ for data in $H^s\times H^{\ell}$, with $s$ and $\ell$ satisfying $\max \{0, s-1\} \le \ell \le \min\{2s, s+1\}$. In particular, these include the energy space $H^1\times L^2$. Our results improve the previous ones obtained in \cite{Bidegaray1}, \cite{Bidegaray2} and \cite{Corcho-Linares}. Moreover, in the critical case (N=2) and for initial data in $H^1\times L^2$, we prove that solutions exist for all times, thus providing a negative answer to the open problem mentioned in \cite{Fibich-Papanicolau} concerning the formation of singularities for these solutions.

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