The universal sl(2) cohomology via webs and foams
Abstract
Description
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.
27 pages, many figures; v2: changes following referee's suggestions, typos corrected
27 pages, many figures; v2: changes following referee's suggestions, typos corrected