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Cut-disks for level spheres in link and tangle complements
Journal article   Open access   Peer reviewed

Cut-disks for level spheres in link and tangle complements

Maggy Tomova
Topology and its applications, Vol.156(4), pp.783-794
2009
DOI: 10.1016/j.topol.2008.10.018
url
https://doi.org/10.1016/j.topol.2008.10.018View
Published (Version of record) Open Access

Abstract

Wu has shown that if a link or a knot L in S 3 in thin position has thin spheres, then the thin sphere of lowest width is an essential meridional surface in the link complement. In this paper we show that if we further assume that L ⊂ S 3 is prime, then the thin sphere of lowest width also does not have any vertical cut-disks. We also prove the result for a specific kind of tangles in S 2 × [ − 1 , 1 ] .
Thin position Cut-disks Thin spheres

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