论文标题
财产FA不是属性的财产
Property FA is not a profinite property
论文作者
论文摘要
我们展示了许多非同构有限呈现的,有限的剩余组$δ$和$γ$,$δ$具有财产FA,$γ$在树上具有非平凡动作,$δ$和$γ$具有同构合成的完整。
We exhibit infinitely many pairs of non-isomorphic finitely presented, residually finite groups $Δ$ and $Γ$ with $Δ$ having Property FA, $Γ$ having a non-trivial action on a tree and $Δ$ and $Γ$ having isomorphic profinite completions.