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Strongly-cyclic branched coverings of (1, 1)-knots and cyclic presentations of groups
2003
Mathematical proceedings of the Cambridge Philosophical Society (Print)
We study the connections among the mapping class group of the twice punctured torus, the cyclic branched coverings of (1, 1)-knots and the cyclic presentations of groups. We give the necessary and sufficient conditions for the existence and uniqueness of the n-fold strongly-cyclic branched coverings of (1, 1)-knots, through the elements of the mapping class group. We prove that every n-fold strongly-cyclic branched covering of a (1, 1)-knot admits a cyclic presentation for the fundamental
doi:10.1017/s0305004103006686
fatcat:ey7jf33rsrgfzm3mkoaz5aczqm