scispace - formally typeset
Open AccessJournal ArticleDOI

A characterization of complete Riemannian manifolds minimally immersed in the unit sphere

Qing-Ming Cheng
- 01 Sep 1993 - 
- Vol. 131, pp 127-133
Reads0
Chats0
TLDR
In this paper, the authors generalize the results due to Chern, do Carmo and Kobayashi [1] to complete Riemannian manifolds and show that if the square of length of the second fundamental form in M n is not more than, then either M n n is totally geodesic, or M n m is the Veronese surface in S 4 (1) or M m n is the Clifford torus.
Abstract
Let M n be an n -dimensional Riemannian manifold minimally immersed in the unit sphere S n+p (1) of dimension n + p . When M n is compact, Chern, do Carmo and Kobayashi [1] proved that if the square ‖ h ‖ 2 of length of the second fundamental form h in M n is not more than , then either M n is totally geodesic, or M n is the Veronese surface in S 4 (1) or M n is the Clifford torus . In this paper, we generalize the results due to Chern, do Carmo and Kobayashi [1] to complete Riemannian manifolds.

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

Rigidity theorems of Clifford Torus

TL;DR: In this article, it was shown that if M has (n − 1) principal curvatures with the same sign everywhere, then M is isometric to a Clifford Torus.
Journal ArticleDOI

Complete submanifolds with parallel mean curvature vector in hyperbolic spaces

TL;DR: In this article, a better estimate was proved and generalized to higher codimensions of a theorem of Y.B. Shen on complete submanifolds with parallel mean curvature vector in a hyperbolic space.
Journal ArticleDOI

On the Principal Curvatures of Complete Minimal Hypersurfaces in Space Forms

TL;DR: In this article, a general class of complete minimal hypersurfaces in real space forms of constant curvature c, namely those with constant curvatures having the same sign everywhere, is studied.
References
More filters
Book ChapterDOI

Minimal Submanifolds of a Sphere with Second Fundamental Form of Constant Length

TL;DR: In this article, an n-dimensional manifold which is minimally immersed in a unit sphere of dimension n+p is considered. But the manifold is not a sphere, it is a manifold.
Related Papers (5)