Contrasting Various Notions of Convergence in Geometric Analysis
Abstract
We explore the distinctions between $L^p$ 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 $L^p$ sense. We then prove a theorem which requires $L^p$ bounds from above and $C^0$ bounds from below on the warping functions to obtain enough control for all these limits to agree.
- Publication:
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arXiv e-prints
- Pub Date:
- March 2018
- DOI:
- arXiv:
- arXiv:1803.06582
- Bibcode:
- 2018arXiv180306582A
- Keywords:
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- Mathematics - Metric Geometry;
- Mathematics - Differential Geometry;
- 53C23
- E-Print:
- 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