Some 3-manifold groups with the same finite quotients
Some 3-manifold groups with the same finite quotients
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一些具有相同有限商的 3 流形群
DOI:
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发表时间:
2014
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通讯作者:
J. Hempel
中科院分区:
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作者:
J. Hempel
We give examples of closed, oriented 3-manifolds whose fundamental groups are not isomorphic, but yet have the same sets of finite quotient groups; hence the same profinite completions. We also give examples of compact, oriented 3-manifolds with non-empty boundaries whose fundamental groups though isomorphic have distinct peripheral structures, but yet have the same sets of finite peripheral pair quotients (defined below). The examples are Seifert Fibered Spaces with zero rational Euler number; moreover most of these manifolds give rise to such examples.