Character Sheaves on Disconnected Groups, Iv

@inproceedings{Lusztig2003CharacterSO,
  title={Character Sheaves on Disconnected Groups, Iv},
  author={George Lusztig},
  year={2003}
}
We construct a basis for the space of invariant functions on the rational points of a possibly disconnected reductive group over a finite field, coming from intersection cohomology