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arxiv: math/0512348 · v1 · submitted 2005-12-15 · 🧮 math.GT · math.SG

The Ozsv{\'a}th-Szab{\'o} and Rasmussen concordance invariants are not equal

classification 🧮 math.GT math.SG
keywords comingconcordancecounterexamplesequalhomologyinvariantozsvrasmussen
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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.

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