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arXiv 1202.3835math.GR
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剩余双曲群在中心化子扩张的直积中的有效嵌入

Effective embedding of residually hyperbolic groups into direct products of extensions of centralizers

Olga Kharlampovich, Jeremy Macdonald

摘要:

对任意无挠双曲群$Γ$和任意完全剩余$Γ$的群$G$,我们构造了一个从$G$到由$Γ$通过中心化子扩张得到的群的同态的有限集合,其中至少有一个是内射的.当$G$是剩余的$Γ$时,这给出了将$G$有效嵌入到这样的群的直积中。我们还给出了一个算法构造的一个图编码的同态集从一个给定的群到$Γ$。

英文摘要:

For any torsion-free hyperbolic group $Γ$ and any group $G$ that is fully residually $Γ$, we construct algorithmically a finite collection of homomorphisms from $G$ to groups obtained from $Γ$ by extensions of centralizers, at least one of which is injective. When $G$ is residually $Γ$, this gives a effective embedding of $G$ into a direct product of such groups. We also give an algorithmic construction of a diagram encoding the set of homomorphisms from a given finitely presented group to $Γ$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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