Highest weight categories arising from Khovanov's diagram algebra IV: the general linear supergroup

Abstract

We prove that blocks of the general linear supergroup are Morita equivalent to a limiting version of Khovanov's diagram algebra. We deduce that blocks of the general linear supergroup are Koszul.

Cite this article

Jonathan Brundan, Catharina Stroppel, Highest weight categories arising from Khovanov's diagram algebra IV: the general linear supergroup. J. Eur. Math. Soc. 14 (2012), no. 2, pp. 373–419

DOI 10.4171/JEMS/306