Type: Article
Publication Date: 2004-03-01
Citations: 225
DOI: https://doi.org/10.1142/s0219891604000032
We show that the Benjamin–Ono equation is globally well-posed in H s (R) for s≥1. This is despite the presence of the derivative in the nonlinearity, which causes the solution map to not be uniformly continuous in H s for any s [18]. The main new ingredient is to perform a global gauge transformation which almost entirely eliminates this derivative.