当前位置:
X-MOL 学术
›
Differ. Geom. Appl.
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Lower bound of the scalar curvature for quasi-Einstein metrics
Differential Geometry and its Applications ( IF 0.5 ) Pub Date : 2021-02-18 , DOI: 10.1016/j.difgeo.2021.101738 Wang Shen , Lin Feng Wang
中文翻译:
准爱因斯坦度量的标量曲率下界
更新日期:2021-02-18
Differential Geometry and its Applications ( IF 0.5 ) Pub Date : 2021-02-18 , DOI: 10.1016/j.difgeo.2021.101738 Wang Shen , Lin Feng Wang
Let be an n-dimensional Riemannian manifold with a quasi-Einstein metric g, i.e., g satisfies the following equation for constants and λ, here Ric denotes the Ricci curvature tensor. In this paper, we derive a sharp lower bound estimate for the scalar curvature R of when and . A more specific estimate can be derived if f satisfies another asymptotic condition at infinity.
中文翻译:
准爱因斯坦度量的标量曲率下界
让 是具有准爱因斯坦度量g的n维黎曼流形,即g满足以下方程 对于常数 和λ,这里Ric表示里奇曲率张量。在本文中,我们得出了标量曲率R的一个尖锐的下界估计。 什么时候 和 。如果f满足无穷大处的另一个渐近条件,则可以得出更具体的估计。