Foams and sl(n) cohomology for tangles (n > 3)
Geometric Topology
2013-02-19 v2 Quantum Algebra
Abstract
We use 4-valent planar graphs and singular cobordisms (called foams) to construct an integral doubly-graded cohomology for tangles, and in particular for links, whose graded Euler characteristic yields the sl(n) link polynomial (for n > 3).
Keywords
Cite
@article{arxiv.1302.2985,
title = {Foams and sl(n) cohomology for tangles (n > 3)},
author = {Carmen Caprau},
journal= {arXiv preprint arXiv:1302.2985},
year = {2013}
}
Comments
This paper has been withdrawn by the author due to a flaw in the proof of the invariance under the Reidemeister III move