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Room P3.10, Mathematics Building

Marko Stosic, Instituto Superior Técnico

Khovanov homology of torus knots

In this talk we show that the torus knots Tp,q for 3≤p≤q are homologically thick. Furthermore, we show that we can reduce the number of twists q without changing a certain part of the homology, and consequently we show that there exists a stable homology for torus knots conjectured in [1]. Also, we calculate the Khovanov homology groups of low homological degree for torus knots, and we conjecture that the homological width of the torus knot Tp,q is at least p.
References:
[1] N. Dunfield, S. Gukov and J. Rasmussen: The Superpolynomial for link homologies, arXiv:math.GT/0505056.
[2] M. Stosic: Homological thickness of torus knots, arXiv:math.GT/0511532