2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/132604In this paper, we give an example of a finitely generated 3-dimensional C-algebra which has infinitely generated Derksen invariant as well as Makar-Limaonv invariant.Accepted to Osaka J. MathAlgebraic GeometryCommutative Algebra13N15,13A50,14R20text