Khovanov homology and the slice genus

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We use Lee's work on the Khovanov homology to define a knot invariant s. We show that s(K) is a concordance invariant and that it provides a lower bound for the slice genus of K. As a corollary, we give a purely combinatorial proof of the Milnor conjecture.
20 pages, 8 figures

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Geometric Topology, Quantum Algebra, 57M27; 57R56

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http://salesiana.dossiersoluciones.com/handle/123456789/70102

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0402131
 http://arxiv.org/abs/math/0402131

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arXiv