2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98283The spin-1 Uimin-Lai-Sutherland (ULS) isotropic chain model is expressed in terms of fermions and the equivalence of the fermionic representation to the supersymmetric t-J model is established directly at the level of Hamiltonians.The spin-S ULS model is fermionized and the Hamiltonian of the corresponding generalisation of the t-J model is written down.16 pagesStrongly Correlated ElectronsHigh Energy Physics - Theorytext