# Half-integral finite surgeries on knots in $S^3$

@article{Li2013HalfintegralFS,
title={Half-integral finite surgeries on knots in \$S^3\$},
author={Eileen N Li and Yi Ni},
journal={arXiv: Geometric Topology},
year={2013}
}
• Published 4 October 2013
• Mathematics
• arXiv: Geometric Topology
Suppose that a hyperbolic knot in $S^3$ admits a finite surgery, Boyer and Zhang proved that the surgery slope must be either integral or half-integral, and they conjectured that the latter case does not happen. Using the correction terms in Heegaard Floer homology, we prove that if a hyperbolic knot in $S^3$ admits a half-integral finite surgery, then the knot must have the same knot Floer homology as one of eight non-hyperbolic knots which are known to admit such surgeries, and the resulting…
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