2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141397A coupled Volterra system is proposed. The model can be considered as one of the integrable discrete form of the coupled integrable KdV system which is a significant physical model. Many types of cnoidal waves, positons, negatons (solitons) and complexitons of the model are obtained by a simple rational expansion method of the Jacobi elliptic functions, trigonometric functions and hyperbolic functions.19 pages, 9 figuresExactly Solvable and Integrable SystemsPattern Formation and Solitonstext