English

Linear representations of 3-manifold groups over rings

Geometric Topology 2017-03-21 v1

Abstract

The fundamental groups of compact 3-manifolds are known to be residually finite. Feng Luo conjectured that a stronger statement is true, by only allowing finite groups of the form PGL(2,R),PGL(2,R), where RR is some finite commutative ring with identity. We give an equivalent formulation of Luo's conjecture via faithful representations and provide various examples and a counterexample.

Keywords

Cite

@article{arxiv.1703.06609,
  title  = {Linear representations of 3-manifold groups over rings},
  author = {Stefan Friedl and Montek Gill and Stephan Tillmann},
  journal= {arXiv preprint arXiv:1703.06609},
  year   = {2017}
}

Comments

17 pages

R2 v1 2026-06-22T18:50:30.425Z