The interval-shape conjecture for left-orderable surgery slopes

Let KK be a nontrivial knot in S3S^3 that is not a cable of a nontrivial knot, and let g(K)g(K) denote its genus. Define

SLO(K)={rQπ1(K(r)) is left-orderable}.\mathcal{S}_{LO}(K)=\{r\in\mathbb{Q}\mid \pi_1(K(r))\text{ is left-orderable}\}.

Interval-shape conjecture. The set SLO(K)\mathcal{S}_{LO}(K) coincides with one of

Q,(,2g(K)1)Q,or(2g(K)+1,)Q.\mathbb{Q},\qquad (-\infty,2g(K)-1)\cap\mathbb{Q},\qquad \text{or}\qquad (-2g(K)+1,\infty)\cap\mathbb{Q}.

This conjecture is suggested by the known interval structure of LL-space surgery slopes together with the surgery dichotomy conjecture. Its resolution status is not specified in the source.

Sources & referencesView supporting material

Primary source

Kimihiko Motegi and Masakazu Teragaito, “Left-orderable, non-L-space surgeries on knots”, arXiv:1301.5729 (2013).

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