On the mu-bar invariant of rational surface singularities
Geometric Topology
2008-05-21 v2
Abstract
We show that for rational surface singularities with odd determinant the mu-bar invariant defined by W. Neumann is an obstruction for the link of the singularity to bound a rational homology 4-ball. We identify the mu-bar invariant with the corresponding correction term in Heegaard Floer theory.
Cite
@article{arxiv.0711.1850,
title = {On the mu-bar invariant of rational surface singularities},
author = {Andras I. Stipsicz},
journal= {arXiv preprint arXiv:0711.1850},
year = {2008}
}
Comments
12 pages, minor mistakes corrected