2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184890Some universal amplitude ratios appropriate to the $ϕ_{2,1}$ peturbation of the c=7/10 minimal field theory, the subleading magnetic perturbation of the tricritical Ising model, are explicitly demonstrated in the dilute A$_3$ model, in regime 1.8 pages, LaTeX using iop macrosStatistical MechanicsHigh Energy Physics - TheoryIsing tricriticality and the dilute A$_3$ modeltext