arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1705.04466math.DG
收藏

通过第一上同调群的研究识别$RCD^*(0,N)$空间中的平坦环面

Recognizing the flat torus among $RCD^*(0,N)$ spaces via the study of the first cohomology group

Nicola Gigli, Chiara Rigoni

摘要:

证明了如果$RCD^*(0,N)$空间的第一上同调群的维数为$N$,则该空间是平坦环面.这推广了一个经典的结果,由于Bochner的非光滑设置,也提供了第一个例子,研究的上同调群在这样的合成框架导致几何后果。

英文摘要:

We prove that if the dimension of the first cohomology group of a $RCD^*(0,N)$ space is $N$, then the space is a flat torus. This generalizes a classical result due to Bochner to the non-smooth setting and also provides a first example where the study of the cohomology groups in such synthetic framework leads to geometric consequences.

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。

↑