Baker's lens space cabling conjecture

Let KK be a knot in a lens space LL and let surgery on KK produce a non-prime 33-manifold YY. A knot KK is hyperbolic if its exterior admits a complete finite-volume hyperbolic structure. Baker's lens space cabling conjecture. If KK is hyperbolic, then

Y=L(r,1)#L(s,1).Y=L(r,1)\#L(s,1).

Otherwise, either KK is a torus knot, a Klein bottle knot, or a cabled knot and the surgery is along the boundary slope of an essential annulus in the exterior of KK, or KK is contained in a ball. The non-hyperbolic case has been proved by Baker, but a counterexample is known in the hyperbolic case, so the conjecture is refuted.

Sources & referencesView supporting material

Primary source

Jingling Yang, “Non-hyperbolic solutions to tangle equations involving composite links”, arXiv:1709.01785 (2017).

Additional references

2 papers in this index state this conjecture (2013–2017). The statement above is taken from the most recent of them; the others are arXiv:1306.0596.

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