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arXiv 2007.06834math.GR
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多项式测地增长的虚二步幂零群

A virtually 2-step nilpotent group with polynomial geodesic growth

Alex Bishop, Murray Elder

摘要:

格罗莫夫定理的一个直接结果是,如果一个群关于某个有限生成集具有多项式测地线增长,那么它实际上是幂零的。然而,到目前为止,已知的唯一例子实际上是阿贝尔。本文给出了关于某个有限生成集具有多项式测地增长的虚二步幂零群的一个例子。

英文摘要:

A direct consequence of Gromov's theorem is that if a group has polynomial geodesic growth with respect to some finite generating set then it is virtually nilpotent. However, until now the only examples known were virtually abelian. In this note we furnish an example of a virtually 2-step nilpotent group having polynomial geodesic growth with respect to a certain finite generating set.

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