Oberwolfach Report: Scalar Curvature Stability

Fuente: arXiv
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1. Verfasser: Allen, Brian
Format: Preprint
Veröffentlicht: 2024
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author Allen, Brian
author_facet Allen, Brian
contents Although scalar curvature is the simplest curvature invariant, our understanding of scalar curvature has not matured to the same level as Ricci or sectional curvature. Despite this fact, many rigidity phenomenon have been established which give some of the strongest insights into scalar curvature. Important examples include Geroch's conjecture, the positive mass theorem, and Llarull's theorem. In order to further understand scalar curvature we ask corresponding geometric stability questions, where the hypotheses of the rigidity phenomenon are relaxed, and one would like to show that Riemannian manifolds which satisfy the relaxed conditions are close to the rigid objects in some topology. In this note we will survey what is known for scalar curvature stability, discuss what the questions are in this area, and introduce important tools which have been useful so far.
format Preprint
id arxiv_https___arxiv_org_abs_2404_02662
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Oberwolfach Report: Scalar Curvature Stability
Allen, Brian
Differential Geometry
Metric Geometry
Although scalar curvature is the simplest curvature invariant, our understanding of scalar curvature has not matured to the same level as Ricci or sectional curvature. Despite this fact, many rigidity phenomenon have been established which give some of the strongest insights into scalar curvature. Important examples include Geroch's conjecture, the positive mass theorem, and Llarull's theorem. In order to further understand scalar curvature we ask corresponding geometric stability questions, where the hypotheses of the rigidity phenomenon are relaxed, and one would like to show that Riemannian manifolds which satisfy the relaxed conditions are close to the rigid objects in some topology. In this note we will survey what is known for scalar curvature stability, discuss what the questions are in this area, and introduce important tools which have been useful so far.
title Oberwolfach Report: Scalar Curvature Stability
topic Differential Geometry
Metric Geometry
url https://arxiv.org/abs/2404.02662