Zupan's width conjecture for satellite knots

Let KK be a satellite knot with companion JJ and pattern K^\hat{K} having wrapping number nn. The width of a knot, denoted by w()w(\cdot), is the knot width in the sense of Gabai. Zupan's width conjecture.

If KK is a satellite knot with companion JJ and pattern K^\hat{K} with wrapping number nn, then

w(K)n2w(J).w(K) \geq n^2 \cdot w(J).

This conjecture is the analogue for knot width of the bridge-number inequality of Schubert and Schultens. The paper proves the corresponding equality w(K)=q2w(J)w(K)=q^2w(J) for a (p,q)(p,q)-cable, but the general satellite-knot inequality stated here is not resolved in the supplied text.

Sources & referencesView supporting material

Primary source

Alexander Zupan, “Properties of knots preserved by cabling”, arXiv:1010.3220 (2010).

Additional references

2 papers in this index state this conjecture (2010). The statement above is taken from the most recent of them; the others are arXiv:1008.2047.

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