We exhibit a closed aspherical 5-manifold of nonpositive curvature that fibers over a circle whose fundamental group is hyperbolic relative to abelian subgroups such that the fiber is a closed aspherical 4-manifold whose fundamental group is not hyperbolic relative to abelian subgroups.
Three manifold groups, Kaehler groups and complex surfaces
Hyperbolic volume of representations of fundamental groups of cusped 3-manifolds
On normal subgroups in the fundamental groups of complex surfaces
![QR code for arXiv:2106.08549 [math.GT]](http://oss.arxitics.com/images/favicon.svg)