English

A-hat Genus and Collapsing

dg-ga 2008-02-03 v2 Differential Geometry

Abstract

We give relationships between the vanishing of the A-hat genus and the possibility that a spin manifold can collapse with curvature bounded below.

Cite

@article{arxiv.dg-ga/9704008,
  title  = {A-hat Genus and Collapsing},
  author = {John Lott},
  journal= {arXiv preprint arXiv:dg-ga/9704008},
  year   = {2008}
}

Comments

15 pages, AMS-Latex, proof of Prop. 3 corrected

R2 v1 2026-07-22T12:30:03.761Z