2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127554Let R_{n,d} be the ring of invariants of d-tuples of n x n matrices under the simultaneous conjugation action of the general linear group. A minimal generating system and a homogeneous system of parameters for R_{3,3} are determined. Homogeneous systems of parameters for R_{3,2}, R_{4,2} are also pointed out.13 pagesRings and AlgebrasCommutative Algebra13A50; 15A72The Invariant Ring of Triples of 3x3 Matrices over a Field of Arbitrary Characteristictext