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Main Author: Bascape, Giacomo
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.21729
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author Bascape, Giacomo
author_facet Bascape, Giacomo
contents We show that if $Y$ is a toroidal closed graph manifold rational homology $3$-sphere with $|H_1(Y;\mathbb{Z})| \le 5$, then there exists an irreducible representation $\fund{Y} \to SU(2)$, using topological methods and avoiding the use of gauge theory. This answers positively to a conjecture by Baldwin and Sivek in the case of graph manifolds.
format Preprint
id arxiv_https___arxiv_org_abs_2506_21729
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Toroidal graph manifolds with small homology are not SU(2)-abelian
Bascape, Giacomo
Geometric Topology
We show that if $Y$ is a toroidal closed graph manifold rational homology $3$-sphere with $|H_1(Y;\mathbb{Z})| \le 5$, then there exists an irreducible representation $\fund{Y} \to SU(2)$, using topological methods and avoiding the use of gauge theory. This answers positively to a conjecture by Baldwin and Sivek in the case of graph manifolds.
title Toroidal graph manifolds with small homology are not SU(2)-abelian
topic Geometric Topology
url https://arxiv.org/abs/2506.21729