2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80277The integrability of a coupled KdV-mKdV system is tested by means of singularity analysis. The true Lax pair associated with this system is obtained by the use of prolongation technique.9 pagesExactly Solvable and Integrable SystemsMathematical PhysicsAnalysis of PDEsIntegrability of Kersten-Krasil'shchik coupled KdV-mKdV equations: singularity analysis and Lax pairtext