Closed hyperbolic manifolds without $\text{spin}^c$ structures
Geometric Topology
2025-03-04 v4
Abstract
In all dimensions , we prove the existence of closed orientable hyperbolic manifolds that do not admit any structure, and in fact we show that there are infinitely many commensurability classes of such manifolds. These manifolds all have non-vanishing third Stiefel--Whitney class and are all arithmetic of simplest type. More generally, we show that for each and , there exist infinitely many commensurability classes of closed orientable hyperbolic -manifolds with .
Cite
@article{arxiv.2501.07796,
title = {Closed hyperbolic manifolds without $\text{spin}^c$ structures},
author = {Jacopo G. Chen},
journal= {arXiv preprint arXiv:2501.07796},
year = {2025}
}
Comments
15 pages. Fixed technical issues in Section 4, by requiring in various statements that facets of right-angled manifolds be embedded