Uniformly Levi degenerate CR manifolds: The 5-dimensional case
Uniformly Levi degenerate CR manifolds: The 5-dimensional case
In this paper, we consider real hypersurfaces $M$ in $\mathbb {C}^3$ (or, more generally, $5$-dimensional CR (Cauchy-Riemann) manifolds of hypersurface type) at uniformly Levi degenerate points, that is, Levi degenerate points such that the rank of the Levi form is constant in a neighborhood. We also require that the hypersurface …