Exact diagonalization of the quantum supersymmetric SUq(n|m) model Original Research Article

We use the algebraic nested Bethe ansatz to solve the eigenvalue and eigenvector problem of the supersymmetric SUq(n|m) model with open boundary conditions. Under an additional condition this model is related to a multicomponent supersymmetric t-J model. We also prove that the transfer matrix with open boundary conditions is SUq(n|m) invariant.