  We give a gentle introduction to the concept of folding. That is, we provide
an elementary discussion of equivariant categories, their weighted Grothendieck
groups, and the technical aspects of computing with them. We then perform the
computations required to confirm that quasi-split Hecke algebras with unequal
parameters are categorified by equivariant Soergel bimodules, in almost every
case.

Representation Theory