Crossingless Sheaves and Their Classes in the Equivariant K-Theory
摘要
We introduce crossingless sheaves in certain equivariant derived categories, which are analogous to the Bezrukavnikov–Mirkovic exotic sheaves for two-block nilpotents. The classes of crossingless sheaves are computed in the equivariant K-theory of Cautis–Kamnitzer varieties.