2 papers
math.DG2024
PMCV hypersurfaces in non-flat pseudo-Riemannian space forms
Chao Yang, Jiancheng Liu, Li Du
In this paper, we prove that PMCV (i.e. Δ\vec{H} is proportional to \vec{H}) hypersurface M^n_r of a non-flat pseudo-Riemannian space form N^{n+1}_s(c) with at most two distinct pr…
math.DG2023
Four dimensional hypersurfaces with proper mean curvature vector field in pseudo-Riemannian space forms
Chao Yang, Jiancheng Liu, Li Du
In this paper, we study four dimensional hypersurface M^4_r with proper mean curvature vector field (i.e. Δ\vec{H} is proportional to \vec{H}) in pseudo-Riemannian space form N^5_s…