Direct factors of profinite completions and decidability
We consider finitely presented,residually finite groups $G$ and finitely generated normal subgroups $A$ such that the inclusion $A\hookrightarrow G$ induces an isomorphism from the profinite completion of $A$ to a direct factor of the profinite completion of $G$. We explain why $A$ need not be a dir...
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| Формат: | Journal article |
| Мова: | English |
| Опубліковано: |
2008
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