Branched coverings of simply connected $4$-manifolds
Geometric Topology
2026-05-27 v1
Abstract
We show that, given and two closed connected oriented PL -manifolds and such that has a handle decomposition with no - and -handles, there exists a -fold simple branched covering if and only if there is an isometric embedding of intersection lattices . Moreover, if such exists, one can build it in such a way that its branch set is locally flat PL embedded if and has at most nodal singularities if .
Keywords
Cite
@article{arxiv.2605.26337,
title = {Branched coverings of simply connected $4$-manifolds},
author = {Valentina Bais and Riccardo Piergallini and Daniele Zuddas},
journal= {arXiv preprint arXiv:2605.26337},
year = {2026}
}