Local ill-posedness of the 1D Zakharov system

Justin Holmer

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Local ill-posedness of the 1D Zakharov system

Justin Holmer

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Abstract

Ginibre-Tsutsumi-Velo (1997) proved local well-posedness for the Zakharov system for any dimension $d$, in the inhomogeneous Sobolev spaces $(u,n)\in H^k(\mathbb{R}^d)\times H^s(\mathbb{R}^d)$ for a range of exponents $k$, $s$ depending on $d$. Here we restrict to dimension $d=1$ and present a few results establishing local ill-posedness for exponent pairs $(k,s)$ outside of the well-posedness regime. The techniques employed are rooted in the work of Bourgain (1993), Birnir-Kenig-Ponce-Svanstedt-Vega (1996), and Christ-Colliander-Tao (2003) applied to the nonlinear Schroedinger equation.

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Justin Holmer. 2006-08-24. Local ill-posedness of the 1D Zakharov system. https://arxiv.org/abs/math/0602153

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