Intersection Forms of Spin Four-Manifolds
Geometric Topology
2012-12-18 v2
Abstract
The second Betti number of a smooth, closed, connected and simply connected, four-dimensional spin manifold is greater or equal 11/8 times the abolute value of its signature.
Keywords
Cite
@article{arxiv.1211.7092,
title = {Intersection Forms of Spin Four-Manifolds},
author = {Stefan A. Bauer},
journal= {arXiv preprint arXiv:1211.7092},
year = {2012}
}
Comments
This paper has been withdrawn by the author. Proposition 5.2 is wrong. The author is grateful to Tom Mrowka for pointing out the mistake