2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80072In this paper, the complex version KdV equation is discussed. The corresponding coupled equations is a integrable system in the sense of the bi-Hamiltonian structure, so the complex version KdV equation is integrable. A new spectral form is given, the periodic solution of the complex version KdV equation is obtained. It is showed that the periodic solution is the classical solution.Chaotic DynamicsExactly Solvable and Integrable Systemstext