A lower bound on the width of satellite knots

Details A lower bound on the width of satellite knots A lower bound on the width of satellite knots

2010-08-12

arxiv.org/abs/1008.2047v1

Mathematics

Geometric Topology

10 pages, 3 figures

Scientific paper

Thin position for knots in the 3-sphere was introduced by Gabai and has been used in a variety of contexts. We conjecture an analogue to a theorem of Schubert and Schultens concerning the bridge number of satellite knots. For a satellite knot K, we use the companion torus T to provide a lower bound for w(K), proving the conjecture for K with a 2-bridge companion. As a corollary, we find thin position for any satellite knot with a braid pattern and 2-bridge companion.

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