4 papers
Knot contact homology as a planar limit of Chern-Simons theory
Ben Webster, Meri Zaimi
We prove a conjecture relating augmentation varieties to the large limit of Chern-Simons theory. Although this does not directly establish that the augmentation polynomial of a…
An update on Heisenberg and Kac-Moody categorification
Jonathan Brundan, Alistair Savage, Ben Webster
Heisenberg categories act on many Abelian categories appearing in type A representation theory. There is also a general procedure to construct from a Heisenberg action another acti…
Categorification of quasi-split iquantum groups
Jonathan Brundan, Weiqiang Wang, Ben Webster
We introduce a new family of graded 2-categories generalizing the 2-quantum groups introduced by Khovanov, Lauda and Rouquier. We use them to categorify quasi-split iquantum groups…
Bubbles in the affine Brauer and Kauffman categories
Alistair Savage, Ben Webster
We introduce a generating function approach to the affine Brauer and Kauffman categories and show how it allows one to efficiently recover important sets of relations in these cate…