2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/154266We obtain necessary conditions of optimality for impulsive Volterra integral equations with switching and impulsive controls, with variable impulse time-instants. The present work continues and complements our previous work on impulsive Volterra control with fixed impulse times.23 pagesOptimization and ControlClassical Analysis and ODEs45D05; 34A37; 49J22Optimal control of impulsive Volterra equations with variable impulse timestext