arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.03803math.DG
收藏

关于具有正数量曲率的静态三流形

On static three-manifolds with positive scalar curvature

L. Ambrozio

摘要:

计算了静态三维流形的一个Bochner型公式,并在正数量曲率的情况下给出了一些应用。我们还详细解释了已知的一般结构的(黎曼)爱因斯坦(n+1)-流形相关联的静态n-流形的最大域的静电势是积极的。有一些例子表明,这种构造不可避免地产生了一个爱因斯坦度量,它沿着一个余维为2的子流形具有圆锥奇点。通过证明奇异空间中Einstein四维流形的经典结果,我们推出了具有正数量曲率的紧致静态三维流形的一些分类结果.

英文摘要:

We compute a Bochner type formula for static three-manifolds and deduce some applications in the case of positive scalar curvature. We also explain in details the known general construction of the (Riemannian) Einstein (n+1)-manifold associated to a maximal domain of a static n-manifold where the static potential is positive. There are examples where this construction inevitably produces an Einstein metric with conical singularities along a codimension-two submanifold. By proving versions of classical results for Einstein four-manifolds for the singular spaces thus obtained, we deduce some classification results for compact static three-manifolds with positive scalar curvature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑