2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56964We prove some new formulae for the derivatives of the generalized Gegenbauer polynomials associated to the Lie algebra $A_2$.3 pages, no figures; submitted to Theor. Math. PhysMathematical PhysicsOn the derivatives of generalized Gegenbauer polynomialstext