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Distance of Heegaard splittings of knot complements
Journal article   Open access  Peer reviewed

Distance of Heegaard splittings of knot complements

Maggy Tomova
Pacific Journal of Mathematics, Vol.236(1), pp.119-138
2008
DOI: 10.2140/pjm.2008.236.119
url
https://doi.org/10.2140/pjm.2008.236.119View
Published (Version of record) Open Access

Abstract

Let K be a knot in a closed orientable irreducible 3-manifold M and let P be a Heegaard splitting of the knot complement of genus at least two. Suppose Q is a bridge surface for K. Then either \begin{itemize} \item $d(P)\leq 2-\chi(Q-K)$, or \item K can be isotoped to be disjoint from Q so that after the isotopy Q is a Heegaard surface for the knot exterior and is isotopic to a possibly stabilized copy of P. \end{itemize}

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