The universal sl(3)-link homology

Mackaay, Marco; Vaz, Pedro

http://hdl.handle.net/10400.1/12116

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Authors

Mackaay, Marco

Vaz, Pedro

Abstract(s)

We define the universal sl(3)-link homology, which depends on 3 parameters, following Khovanov's approach with foams. We show that this 3-parameter link homology, when taken with complex coefficients, can be divided into 3 isomorphism classes. The first class is the one to which Khovanov's original sl(3)-link homology belongs, the second is the one studied by Gornik in the context of matrix factorizations and the last one is new. Following an approach similar to Gornik's we show that this new link homology can be described in terms of Khovanov's original sl(2)-link homology.