Perverse sheaves and t-structures on the thin and thick affine flag varieties

Roman Bezrukavnikov, Calder Morton-Ferguson

We study the categories ${\mathrm{Perv}}_{\mathrm{thin}}$ and ${\mathrm{Perv}}_{\mathrm{thick}}$ of Iwahori-equivariant perverse sheaves on the thin and thick affine flag varieties ass…