Global well-posedness for KdV in Sobolev Spaces of negative index
arXiv:math/0101261
Abstract
The initial value problem for the Korteweg-deVries equation on the line is shown to be globally well-posed for rough data. In particular, we show global well-posedness for initial data in H^s({\mathbb{R}), -3/10<s.
5 pages. Electronic Journal of Differential equations (submitted)