English

Random data Cauchy theory for the fourth order nonlinear Schr\"{o}dinger equation with cubic nonlinearity

Analysis of PDEs 2015-05-26 v1

Abstract

We consider the Cauchy problem for the fourth order nonlinear Schr\"{o}dinger equation with derivative nonlinearity (it+Δ2)u=±(u2u)(i\partial _t + \Delta ^2) u= \pm \partial (|u|^2u) on Rd\mathbb{R} ^d, d3d \ge 3, with random initial data, where \partial is a first order derivative with respect to the spatial variable, for example a linear combination of x1,,xd\frac{\partial}{\partial x_1} , \, \dots , \, \frac{\partial}{\partial x_d} or =F1[ξF]|\nabla |= \mathcal{F}^{-1}[|\xi | \mathcal{F}]. We prove that almost sure local in time well-posedness, small data global in time well-posedness and scattering hold in Hs(Rd)H^s(\mathbb{R} ^d) with max(d52,d56)<s\max ( \frac{d-5}{2}, \frac{d-5}{6}) < s, whose lower bound is below the scale critical regularity sc=d32s_c= \frac{d-3}{2}.

Keywords

Cite

@article{arxiv.1505.06497,
  title  = {Random data Cauchy theory for the fourth order nonlinear Schr\"{o}dinger equation with cubic nonlinearity},
  author = {Hiroyuki Hirayama and Mamoru Okamoto},
  journal= {arXiv preprint arXiv:1505.06497},
  year   = {2015}
}