English

Intrinsic Flat Convergence of Covering Spaces

Metric Geometry 2017-03-06 v1

Abstract

We examine the limits of covering spaces and the covering spectra of oriented Riemannian manifolds, MjM_j, which converge to a nonzero integral current space, MM_\infty, in the intrinsic flat sense. We provide examples demonstrating that the covering spaces and covering spectra need not converge in this setting. In fact we provide a sequence of simply connected MjM_j diffeomorphic to S4\mathbb{S}^4 that converge in the intrinsic flat sense to a torus S1×S3\mathbb{S}^1\times\mathbb{S}^3. Nevertheless, we prove that if the δ\delta-covers, M~jδ\tilde{M}_j^\delta, have finite order NN, then a subsequence of the M~jδ\tilde{M}_j^\delta converge in the intrinsic flat sense to a metric space, MδM^\delta_\infty, which is the disjoint union of covering spaces of MM_\infty.

Keywords

Cite

@article{arxiv.1409.7118,
  title  = {Intrinsic Flat Convergence of Covering Spaces},
  author = {Zahra Sinaei and Christina Sormani},
  journal= {arXiv preprint arXiv:1409.7118},
  year   = {2017}
}

Comments

37 pages, 4 figures