2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/194284For evolution of flat universe, we classify late time and future attractors with scaling behavior of scalar field quintessence in the case of potential, which, at definite values of its parameters and initial data, corresponds to exact scaling in the presence of cosmological constant.11 pages, 16 eps-figures, revtex4, reference with comment addedGeneral Relativity and Quantum Cosmologytext