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13. Steenrod Algebra

    1. Problem 13.1.

      1. What is the representation-theoretic meaning of the Steenrod algebra action on mod-p cohomology? For example, on the cohomology of $Gr$?
      2. Does the Steenrod algebra act on the cohomology of any parity sheaf? (Note: examples of Goresky show that this fails for mod-p IC sheaves.)

          Cite this as: AimPL: Sheaves and modular representations of reductive groups, available at http://aimpl.org/sheavemodular.