English

SU(2)-abelian graph manifolds with a single JSJ torus

Geometric Topology 2024-09-18 v2

Abstract

A 3-manifold is called \emph{SU(2)}-abelian if every SU(2)-representation of its fundamental group has abelian image. We classify, in terms of the Seifert coefficients, SU(2)-abelian 3-manifolds among the family of graph manifolds obtained by gluing two Seifert spaces both fibred over a disk and with two singular fibers. Finally, we prove that these SU(2)-abelian manifolds are Heegaard Floer homology L-spaces.

Keywords

Cite

@article{arxiv.2408.16635,
  title  = {SU(2)-abelian graph manifolds with a single JSJ torus},
  author = {Giacomo Bascapè},
  journal= {arXiv preprint arXiv:2408.16635},
  year   = {2024}
}
R2 v1 2026-06-28T18:27:50.150Z