非塌缩 Ricci 极限空间的半局部单连通性
微分几何
2025-07-08 v2 度量几何
摘要
设 为非塌缩 Ricci 极限空间,。我们证明对任意 ,存在 ,使得 中的任一环路在 中可缩,其中 。特别地, 是半局部单连通的。
关键词
引用
@article{arxiv.1904.06877,
title = {Semi-local simple connectedness of non-collapsing Ricci limit spaces},
author = {Jiayin Pan and Guofang Wei},
journal= {arXiv preprint arXiv:1904.06877},
year = {2025}
}
备注
Slightly modified the proof of Theorem 3.5 to fix a minor error on local covers. Slightly modified the proofs of Lemmas 3.2, 3.6, and 3.8 to fix a minor error on estimating $\rho(t,x)$ by a nearby point. Fixed some typos