Thin position for knots in a 3-manifold

Details Thin position for knots in a 3-manifold Thin position for knots in a 3-manifold

2006-09-24

arxiv.org/abs/math/0609674v1

Mathematics

Geometric Topology

14 pages, 2 figures

Scientific paper

We extend the notion of thin multiple Heegaard splittings of a link in a 3-manifold to take into consideration not only compressing disks but also cut-disks for the Heegaard surfaces. We prove that if H is a c-strongly compressible bridge surface for a link K contained in a closed orientable irreducible 3-manifold M then one of the following is satisfied: H is stabilized, H is meridionally stabilized, H is perturbed, a component of K is removable, M contains an essential meridional surface.

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