Osaka Journal of Mathematics

On the generalized Dunwoody $3$-manifolds

Soo Hwan Kim and Yangkok Kim

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We introduce a family of orientable $3$-manifolds induced by certain cyclically presented groups and show that this family of $3$-manifolds contains all Dunwoody $3$-manifolds by using the planar graphs corresponding to the polyhedral description of the $3$-manifolds. As applications, we consider two families of cyclically presented groups, and show that these are isomorphic to the fundamental groups of the certain Dunwoody $3$-manifolds $D_{n}$ ($n \geq 2$) which are the $n$-fold cyclic coverings of the $3$-sphere branched over the certain two-bridge knots, and that $D_{n}$ is the $(\mathbb{Z}_{n}\oplus \mathbb{Z}_{2})$-fold covering of the $3$-sphere branched over two different $\Theta$-curves.

Article information

Osaka J. Math., Volume 50, Number 2 (2013), 457-476.

First available in Project Euclid: 21 June 2013

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Mathematical Reviews number (MathSciNet)

Zentralblatt MATH identifier

Primary: 57M12: Special coverings, e.g. branched 57M25: Knots and links in $S^3$ {For higher dimensions, see 57Q45} 57M27: Invariants of knots and 3-manifolds 57M50: Geometric structures on low-dimensional manifolds
Secondary: 57M05: Fundamental group, presentations, free differential calculus 57M10: Covering spaces 57M15: Relations with graph theory [See also 05Cxx] 57M60: Group actions in low dimensions


Kim, Soo Hwan; Kim, Yangkok. On the generalized Dunwoody $3$-manifolds. Osaka J. Math. 50 (2013), no. 2, 457--476.

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