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most citedEpimorphisms between 2-bridge link groups: Homotopically trivial simple loops on 2-bridge spheres

21 citations · 46 across the 23 of their papers we have counts for

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math.GR2015

Parabolic generating pairs of genus-one 2-bridge knot groups

Donghi Lee, Makoto Sakuma

We show that any parabolic generating pair of a genus-one hyperbolic 2-bridge knot group is equivalent to the upper or lower meridian pair. As an application, we obtain a complete…

math.GR2015

Simple loops on 2-bridge spheres in Heckoid orbifolds for the trivial knot

Donghi Lee, Makoto Sakuma

In this paper, we give a necessary and sufficient condition for an essential simple loop on a -bridge sphere in an even Heckoid orbifold for the trivial knot to be null-homotopi…