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math.GR2008
Direct factors of profinite completions and decidability
Martin R. Bridson
We consider finitely presented,residually finite groups and finitely generated normal subgroups such that the inclusion induces an isomorphism from the…
math.GR2008★ 3 cited
Decision problems and profinite completions of groups
Martin R. Bridson
We consider pairs of finitely presented, residually finite groups $P\hookrightarrow\G$ for which the induced map of profinite completions $\hat P\to \hat\G$ is an isomorphism. We p…
math.GR2008★ 15 cited
Finitely presented residually free groups
Martin R. Bridson, James Howie, Charles F. Miller +1
We establish a general criterion for the finite presentability of subdirect products of groups and use this to characterize finitely presented residually free groups. We prove that…