Mathematics – Geometric Topology
Scientific paper
2010-01-22
Mathematics
Geometric Topology
13 pages, 4 figures. To appear in 2009 Georgia Topology Conference Proceedings
Scientific paper
Two Dehn surgeries on a knot are called cosmetic if they yield homeomorphic
manifolds. For a null-homologous knot with certain conditions on the Thurston
norm of the ambient manifold, if the knot admits cosmetic surgeries, then the
surgery coefficients are equal up to sign.
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