Enveloping algebras of some quantum Lie algebras

Abstract

We define a family of Hopf algebra objects, H, in the braided category of Z n -modules (known as anyonic vector spaces), for which the property ψ 2 H⊗H = id H⊗H holds. We will show that these anyonic Hopf algebras are, in fact, the enveloping (Hopf) algebras of particular quantum Lie algebras, also with the property ψ 2 = id. Then we compute the braided periodic Hopf cyclic cohomology of these Hopf algebras. For that, we will show the following fact: analogous to the non-super and the super case, the well known relation between the periodic Hopf cyclic cohomology of an enveloping (super) algebra and the (super) Lie algebra homology also holds for these particular quantum Lie algebras, in the category of anyonic vector spaces.