M\"{o}bius Homogeneous Hypersurfaces in $\mathbb{S}^{n+1}$

Abstract

Let $\mathbb{M}(\mathbb{S}^{n+1})$ denote the M\"{o}bius transformation group of the $(n+1)$-dimensional sphere $\mathbb{S}^{n+1}$. A hypersurface $x:M^n\to \mathbb{S}^{n+1}$ is called a M\"{o}bius homogeneous hypersurface if there exists a subgroup $G$ of $\mathbb{M}(\mathbb{S}^{n+1})$ such that the orbit $G\cdot p=x(M^n), p\in x(M^n)$. In this paper, the M\"{o}bius homogeneous hypersurfaces are classified completely up to a M\"{o}bius transformation of $\mathbb{S}^{n+1}$.Comment: 35 pages, comments welcom