Casimir Invariants from Quasi-Hopf (Super)algebras
arXiv:math/9811052 · doi:10.1063/1.533151
Abstract
We show how to construct, starting from a quasi-Hopf (super)algebra, central elements or Casimir invariants. We show that these central elements are invariant under quasi-Hopf twistings. As a consequence, the elliptic quantum (super)groups, which arise from twisting the normal quantum (super)groups, have the same Casimir invariants as the corresponding quantum (super)groups.
24 pages, Latex file