• Title/Summary/Keyword: cyclically presented groups

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THE KNOT $5_2$ AND CYCLICALLY PRESENTED GROUPS

  • Kim, Goan-Su;Kim, Yang-Kok;Vesnin, Andrei
    • Journal of the Korean Mathematical Society
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    • v.35 no.4
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    • pp.961-980
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    • 1998
  • The cyclically presented groups which arise as fundamental groups of cyclic branched coverings of the knot $5_2$ are studied. The fundamental polyhedra for these groups are described. Moreover the cyclic covering manifolds are obtained in terms of Dehn surgery and as two-fold branched coverings of the 3-sphere.

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CYCLIC PRESENTATIONS OF GROUPS AND CYCLIC BRANCHED COVERINGS OF (1, 1)-KNOTS

  • Mulazzani, Michele
    • Bulletin of the Korean Mathematical Society
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    • v.40 no.1
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    • pp.101-108
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    • 2003
  • In this paper we study the connections between cyclic presentations of groups and cyclic branched coverings of (1, 1)- knots. In particular, we prove that every π-fold strongly-cyclic branched covering of a (1, 1)-knot admits a cyclic presentation for the fundamental group encoded by a Heegaard diagram of genus π.