arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.02575math.DG
收藏

可解李群的紧伪黎曼齐性空间的刚性

Rigidity of compact pseudo-Riemannian homogeneous spaces for solvable Lie groups

Oliver Baues, Wolfgang Globke

摘要:

设$M$是紧致连通伪黎曼流形,其上可解的等距连通李群$G$作用传递.我们证明了$G$几乎自由地作用在$M$上,并且$M$上的度量是由$G$上的双不变伪黎曼度量引起的。进一步证明了$M$的等距群的单位连通区与$G$一致.

英文摘要:

Let $M$ be a compact connected pseudo-Riemannian manifold on which a solvable connected Lie group $G$ of isometries acts transitively. We show that $G$ acts almost freely on $M$ and that the metric on $M$ is induced by a bi-invariant pseudo-Riemannian metric on $G$. Furthermore, we show that the identity component of the isometry group of $M$ coincides with $G$.

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。

↑