Homotopy classification of $4$-manifolds with $3$-manifold fundamental group
Geometric Topology
2025-08-12 v1
Abstract
We give a criterion on a group and a homomorphism under which closed -manifolds with fundamental group and orientation character are classified up to homotopy equivalence by their quadratic -types. We verify the criterion for a large class of -manifold groups and orientation characters, in particular for the fundamental group of any closed, orientable -manifold whose finite subgroups are cyclic, provided vanishes on every element of of finite order. We deduce a homeomorphism classification of closed, orientable -manifolds with infinite dihedral fundamental group .
Keywords
Cite
@article{arxiv.2508.07504,
title = {Homotopy classification of $4$-manifolds with $3$-manifold fundamental group},
author = {Jonathan Hillman and Daniel Kasprowski and Mark Powell and Arunima Ray},
journal= {arXiv preprint arXiv:2508.07504},
year = {2025}
}
Comments
64 pages, 2 figures