Linear Koszul duality

摘要

In this paper we construct, for F and F subbundles of a vector bundle E, a 'Koszul duality' equivalence between derived categories of Gm-equivariant coherent (dg-)sheaves on the derived intersection F1 R E F2,and the corresponding derived intersection F1 R E F2.We also propose applications to Hecke algebras.