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Profinite rigidity for Seifert fibre spaces

Accepted version
Peer-reviewed

Type

Article

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Abstract

An interesting question is whether two 3-manifolds can be distinguished by computing and comparing their collections of finite covers; more precisely, by the profinite completions of their fundamental groups. In this paper, we solve this question completely for closed orientable Seifert fibre spaces. In particular, all Seifert fibre spaces are distinguished from each other by their profinite completions apart from some previously-known examples due to Hempel. We also characterize when bounded Seifert fibre space groups have isomorphic profinite completions, given some conditions on the boundary.

Description

Keywords

3-Manifolds, Profinite rigidity, Seifert fibre spaces

Journal Title

Geometriae Dedicata

Conference Name

Journal ISSN

0046-5755
1572-9168

Volume Title

188

Publisher

Springer Science and Business Media LLC