“…As a result, an integrodifferential system is created by adding an integration term to the differential system to include the memory possessions in these frameworks. Integrodifferential systems have been widely employed in viscoelastic mechanics, fluid dynamics, thermoelastic contact, control theory, heat conduction, industrial mathematics, financial mathematics, biological models, and other domains, one can refer to earlier studies Many research works [19][20][21][22][23][24][25][26][27][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] have explored the existence and uniqueness, optimal control, and timeoptimal control for fractional-order, integer-order, integrodifferential system, neutral system, and so on in recent years. The authors of an earlier study [36] used Krasnoselskii's fixed-point theorem and the minimizing sequence notion to achieve existence and optimal control conclusions for a second-order stochastic differential equations with mixed-fractional Brownian motion.…”