Koszul dual 2-functors and extension algebras of simple modules for $GL_2$

Vanessa Miemietz; Will Turner

paper

Koszul dual 2-functors and extension algebras of simple modules for $G L_{2}$

arXiv:1106.5411

Abstract

Let p be a prime number. We compute the Yoneda extension algebra of $G L_{2}$ over an algebraically closed field of characteristic p by developing a theory of Koszul duality for a certain class of 2-functors, one of which controls the category of rational representations of $G L_{2}$ over such a field.

arXiv comment39 pages, title changed in second version, to appear in Selecta Math. (N.S.)

Koszul dual 2-functors and extension algebras of simple modules for GL2​

Abstract

Cited by in corpus (2)

Koszul dual 2-functors and extension algebras of simple modules for $G L_{2}$