A whittled complex for the Khovanov homology of torus links
Geometric Topology
2026-01-15 v1
Abstract
We give an algorithm for reducing the number of generators of the Khovanov chain complex of the torus braid on strands by applying Bar-Natan Gaussian elimination along a distinguished set of Gaussian elimination isomorphisms. We call the resulting complex a \emph{whittled complex} for the Khovanov homology of torus braids. Using this algorithm, we provide a bound for the number of generators at a fixed homological degree in our whittled complex.
Cite
@article{arxiv.2601.09079,
title = {A whittled complex for the Khovanov homology of torus links},
author = {Carmen Caprau and Nicolle Gonzalez and Christine Ruey Shan Lee and Radmila Sazdanovic},
journal= {arXiv preprint arXiv:2601.09079},
year = {2026}
}
Comments
32 pages, 30 figures. Comments welcome