2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/113956The least upper bound on degrees of elements of a minimal system of generators of the algebra of invariants of 3x3 matrices is found, and the nilpotency degree of a relatively free finitely generated algebra with the identity x^3=0 is established.Rings and Algebras13A50; 15A72; 16R10; 16R30text