The sl(2) foam cohomology via a TQFT
Geometric Topology
2013-04-18 v3
Abstract
We construct a cohomology theory for oriented links using singular cobordisms and a special type of 2-dimensional Topological Quantum Field Theory (TQFT), categorifying the quantum sl(2) invariant. In particular, we give a description of the universal dot-free sl(2) foam cohomology for links via a TQFT.
Keywords
Cite
@article{arxiv.1001.1797,
title = {The sl(2) foam cohomology via a TQFT},
author = {Carmen Caprau},
journal= {arXiv preprint arXiv:1001.1797},
year = {2013}
}
Comments
24 pages, many figures; references have been added and some concepts have been clarified