On product affine hyperspheres in Rn+1

被引:3
|
作者
Xiuxiu Cheng [1 ,2 ]
Zejun Hu [1 ,2 ]
Marilena Moruz [3 ]
Luc Vrancken [3 ,4 ]
机构
[1] School of Mathematics and Statistics, Zhengzhou University
[2] Henan Key Laboratory of Financial Engineering
[3] Department of Mathematics,KU Leuven
[4] Institut des Sciences et Techniques de Valenciennes (ISTV),Université Polytechnique Hauts de France
基金
中国国家自然科学基金;
关键词
D O I
暂无
中图分类号
O186.1 [微分几何];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we study locally strongly convex affine hyperspheres in the unimodular affine space Rn+1which, as Riemannian manifolds, are locally isometric to the Riemannian product of two Riemannian manifolds both possessing constant sectional curvature. As the main result, a complete classification of such affine hyperspheres is established. Moreover, as direct consequences, 3-and 4-dimensional affine hyperspheres with parallel Ricci tensor are also classified.
引用
收藏
页码:2055 / 2078
页数:24
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