Polynomial functors and categorifications of Fock space
arXiv:1111.5317
Abstract
Fix an infinite field of characteristic , and let $\g$ be the Kac-Moody algebra if and otherwise. Let $\PP$ denote the category of strict polynomial functors defined over . We describe a $\g$-action on $\PP$ (in the sense of Chuang and Rouquier) categorifying the Fock space representation of $\g$.
23 pages