Mathematics – Geometric Topology
Scientific paper
2005-12-15
Mathematics
Geometric Topology
13 pages, 2 large color figures, 1 small black/white figure
Scientific paper
In this paper we present several counterexamples to Rasmussen's conjecture
that the concordance invariant coming from Khovanov homology is equal to twice
the invariant coming from Ozsv{\'a}th-Szab{\'o} Floer homology. The
counterexamples are twisted Whitehead doubles of the (2,2n+1) torus knots.
Hedden Matthew
Ording Philip
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