2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98264We define an integrable lattice model which, in the notation of Yang, in addition to the conventional 2-particle $R$-matrices also contains non-reducible 3-particle $R$-matrices. The corresponding modified Yang-Baxter equations are solved and an expression for the transfer matrix is found as a normal ordered exponential of a (non-local) Hamiltonian.13 pages, 4 figuresStatistical MechanicsHigh Energy Physics - Theorytext