2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137596The so-called type problem or forcing problem is considered as a way to generalize Sharkovskii's theorem. In this paper, by focusing on certain types of orbits, we obtain a solution of the type problem, which gives a refinement of Sharkovskii's theorem on orbit types characterized by two parameters.Dynamical Systems37E15, 37E05text