2017/03/20 by Friedl, Stefan, Gill, Montek, Tillmann, Stephan · 1 citation
#57M27 #57M50 #FOS: Mathematics #Geometric Topology (math.GT)
paper · doi:10.48550/arxiv.1703.06609
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), where R 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.