This paper presents Pareto design of decoupled sliding-mode controllers based on a multiobjective genetic algorithm for several fourth-order coupled nonlinear systems. In order to achieve an optimum controller. at first. the decoupled sliding mode controller is applied to stablize the fourth-order coupled nonlinear systems at the equilibrium point. https://macorners.shop/product-category/engraved-whiskey-glass_2025/