A gap rigidity for proper holomorphic maps from $ \B^{n+1}$ to $ \B^{3n-1}$

Seungho Wang

Let $ \B^{n+1} \subset \C^{n+1}$ be the unit ball in a complex Euclidean space, and let $ Σ^n = \partial \B^{n+1} = S^{2n+1}$. Let $ f: Σ^n \hook Σ^{N}$ be a local CR immersion.If…