English

Well and ill-posedness issues for energy supercritical waves

Analysis of PDEs 2009-06-18 v1 Classical Analysis and ODEs

Abstract

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.

Keywords

Cite

@article{arxiv.0906.3092,
  title  = {Well and ill-posedness issues for energy supercritical waves},
  author = {Slim Ibrahim and Mohamed Majdoub and Nader Masmoudi},
  journal= {arXiv preprint arXiv:0906.3092},
  year   = {2009}
}

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Submitted

R2 v1 2026-06-21T13:14:08.577Z