Contrasting Various Notions of Convergence in Geometric Analysis
Metric Geometry
2020-06-02 v3 Differential Geometry
Abstract
We explore the distinctions between convergence of metric tensors on a fixed Riemannian manifold versus Gromov-Hausdorff, uniform, and intrinsic flat convergence of the corresponding sequence of metric spaces. We provide a number of examples which demonstrate these notions of convergence do not agree even for two dimensional warped product manifolds with warping functions converging in the sense. We then prove a theorem which requires bounds from above and bounds from below on the warping functions to obtain enough control for all these limits to agree.
Keywords
Cite
@article{arxiv.1803.06582,
title = {Contrasting Various Notions of Convergence in Geometric Analysis},
author = {Brian Allen and Christina Sormani},
journal= {arXiv preprint arXiv:1803.06582},
year = {2020}
}
Comments
7 figures by Penelope Chang of Hunter College High School. v2: Referee comments addressed. To appear in Pacific Journal of Mathematics v3: Further clarification of Remark 2.2 provided