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math.GR2012★ 2 cited
Groups possessing only indiscrete embeddings in SL(2,C)
J. O. Button
We give results on when a finitely generated group has only indiscrete embeddings in SL(2,C), with particular reference to 3-manifold groups. For instance if we glue two copies of…
math.GT2012
A 3-manifold group which is not four dimensional linear
J. O. Button
We give examples of closed orientable graph 3-manifolds with fundamental group which is not a subgroup of GL(4,k) for any field k. This answers a question in the Kirby problem list…