Dehn surgery on knots of wrapping number 2
Abstract
Suppose is a hyperbolic knot in a solid torus intersecting a meridian disk twice. We will show that if is not the Whitehead knot and the frontier of a regular neighborhood of is incompressible in the knot exterior, then admits at most one exceptional surgery, which must be toroidal. Embedding in gives infinitely many knots with a slope corresponding to a slope of in . If surgery on in is toroidal then either all but at most three are toroidal, or they are all reducible or small Seifert fibered with two common singular fiber indices. These will be used to classify exceptional surgeries on wrapped Montesinos knots in solid torus, obtained by connecting the top endpoints of a Montesinos tangle to the bottom endpoints by two arcs wrapping around the solid torus.
Keywords
Cite
@article{arxiv.1105.4287,
title = {Dehn surgery on knots of wrapping number 2},
author = {Ying-Qing Wu},
journal= {arXiv preprint arXiv:1105.4287},
year = {2011}
}
Comments
26 pages, 4 figures