Xianfeng Wang

collaborators

2 papers

math.DG2023

Generalized Alexandrov theorems in spacetimes with integral conditions

Kwok-Kun Kwong, Xianfeng Wang

We investigate integral conditions involving the mean curvature vector $H$ or mixed higher-order mean curvatures, to determine when a codimension-two submanifold $Σ$ lies on…

math.DG2023

Hypersurfaces of $S^{2} \times S^{2}$ with constant sectional curvature

Haizhong Li, Luc Vrancken, Xianfeng Wang +1

In this paper, we classify the hypersurfaces of $S^{2} \times S^{2}$ with constant sectional curvature. By applying the so-called Tsinghua principle, which was first di…

Generalized Alexandrov theorems in spacetimes with integral conditions

Hypersurfaces of S2×S2 with constant sectional curvature

Hypersurfaces of $S^{2} \times S^{2}$ with constant sectional curvature