Semi-local simple connectedness of non-collapsing Ricci limit spaces
Differential Geometry
2025-07-08 v2 Metric Geometry
Abstract
Let be a non-collapsing Ricci limit space and let . We show that for any , there is such that every loop in is contractible in , where . In particular, is semi-locally simply connected.
Keywords
Cite
@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}
}
Comments
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