2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/187152We consider the Hamiltonian of the closed $SU(2)_{q}$ invariant chain. We project a particular class of statistical models belonging to the unitary minimal series. A particular model corresponds to a particular value of the coupling constant. The operator content is derived. This class of models has charge-dependent boundary conditions. In simple cases (Ising, 3-state Potts) corresponding Hamiltonians are constructed. These are non-local as the original spin chain.19 pages, latex, no figuresHigh Energy Physics - TheoryCondensed MatterHigh Energy Physics - Latticetext