ON SUPER-RS ALGEBRA AND DRINFELD REALIZATION OF QUANTUM AFFINE SUPERALGEBRAS

We describe the realization of the super-Reshetikhin-Semenov-Tian-Shan sky (RS) algebra in quantum affine superalgebras, thus generalizing th e approach of Frenkel and Reshetikhin to the supersymmetric (and twist ed) case. The algebraic homomorphism between the super-RS algebra and the Drinfeld current realization of quantum affine superalgebras is es tablished by using the Gauss decomposition technique of Ding and Frenk el. As an application, we obtain Drinfeld realization of quantum affin e superalgebra U-q [osp(1/2)((1))] and its degeneration - central exte nded super-Yangian double DY(h over bar) [osp(1/2)((1))].