We completely classify Levi flat CR structures (that is, CR structures with vanishing Levi form) on three-dimensional real Lie algebras, in terms of their algebraic and almost contact properties.

中文翻译：

---

3D李代数上的Levi平面CR结构

根据它们的代数和几乎接触性质，我们对三维真实李代数上的Levi平面CR结构（即具有消失的Levi形式的CR结构）进行了完全分类。