English

The cubic Dirac equation: Small initial data in $H^{\frac12}(\mathbb{R}^2)$

Analysis of PDEs 2016-03-31 v3

Abstract

Global well-posedness and scattering for the cubic Dirac equation with small initial data in the critical space H12(R2)H^{\frac12}(\mathbb{R}^2) is established. The proof is based on a sharp endpoint Strichartz estimate for the Klein-Gordon equation in dimension n=2n=2, which is captured by constructing an adapted systems of coordinate frames.

Keywords

Cite

@article{arxiv.1501.06874,
  title  = {The cubic Dirac equation: Small initial data in $H^{\frac12}(\mathbb{R}^2)$},
  author = {Ioan Bejenaru and Sebastian Herr},
  journal= {arXiv preprint arXiv:1501.06874},
  year   = {2016}
}

Comments

58 pages. Notation, setup and general reductions are adopted from our work arXiv:1310.5280, where we address the same problem in the 3d case. The analysis is significantly different. v3: 56 pages, Correction of the definitions of the sets \Lambda_{k,\omega} and \Lambda_{k,\omega}^{j}

R2 v1 2026-06-22T08:14:15.747Z