Scalar Curvature and Intrinsic Flat Convergence
Abstract
Herein we present open problems and survey examples and theorems concerning sequences of Riemannian manifolds with uniform lower bounds on scalar curvature and their limit spaces. Examples of Gromov and of Ilmanen which naturally ought to have certain limit spaces do not converge with respect to smooth or Gromov-Hausdorff convergence. Thus we focus here on the notion of Intrinsic Flat convergence, developed jointly with Wenger. This notion has been applied successfully to study sequences that arise in General Relativity. Gromov has suggested it should be applied in other settings as well. We first review intrinsic flat convergence, its properties, and its compactness theorems, before presenting the applications and the open problems.
Keywords
Cite
@article{arxiv.1606.08949,
title = {Scalar Curvature and Intrinsic Flat Convergence},
author = {Christina Sormani},
journal= {arXiv preprint arXiv:1606.08949},
year = {2017}
}
Comments
53 pages, 4 figures, Geometric Analysis on Riemannian and singular metric spaces, Lake Como School of Advnaced Studies, 11-15 July 2016, v2: minor fixes as requested by referee, to appear as a chapter in the deGruyter book series on PDE and Measure Theory edited by Gigli