The isomorphism problem for profinite completions of residually finite groups
We consider pairs of finitely presented, residually finite groups $u:P\hookrightarrow \Gamma$. We prove that there is no algorithm that, given an arbitrary such pair, can determine whether or not the associated map of profinite completions $\hat{u}: \widehat{P} \to \widehat{\Gamma}$ is an isomorphis...
| Váldodahkkit: | , |
|---|---|
| Materiálatiipa: | Journal article |
| Almmustuhtton: |
European Mathematical Society
2014
|