2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79790In this paper we study two types of exponential instability -- parametric resonance and chaos. We show that a given equation may produce chaos or parametric resonance, depending how the problem is defined. In so doing we establish a relationship between the Floquet indices (associated with parametric resonance) and Lyapunov exponents (associated with chaos).7 pages, 6 figures, uses ReVTeX-betaChaotic Dynamicstext