Some tensor product representations of U-q(s(l)over-cap(2)) at roots of unity

When q is a root of unity, a triangular decomposition of U-q(s (l) over cap(2)) is given and irreducibility conditions concerning some tensor product representations of U-q(s (l) over cap(2)) are presented. Their connection with physics is also pointed out.Physics, MathematicalSCI(E)1ARTICLE4263-2784