A characterisation of virtually free groups

A characterisation of virtually free groups
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几乎自由群体的特征

DOI:
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发表时间:
2007
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通讯作者:
Sarah Rees
Sarah Rees
中科院分区:
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文献类型:
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作者:
R. Gilman;S. Hermiller;D. Holt;Sarah Rees

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摘要:我们证明了一个k-生成群G是虚自由的当且仅当G存在一个生成集且k > 0,使得关于该生成集的所有k-局部测地线字都是测地线的.
Abstract.We prove that a finitely generated group G is virtually free if and only if there exists a generating set for G and k > 0 such that all k-locally geodesic words with respect to that generating set are geodesic.