The universal sl(2) cohomology via webs and foams

Details The universal sl(2) cohomology via webs and foams The universal sl(2) cohomology via webs and foams

2008-02-20

arxiv.org/abs/0802.2848v2

Topology and its Applications, Volume 156 (2009), 1684-1702

Mathematics

Geometric Topology

27 pages, many figures; v2: changes following referee's suggestions, typos corrected

Scientific paper

10.1016/j.topol.2009.02.001

We construct the universal sl(2)-tangle cohomology using an approach with
webs and dotted foams. This theory depends on two parameters, and for the case
of links it is a categorification of the unnormalized Jones polynomial of the
link.

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