Stochastic averaging for the non-autonomous mixed stochastic differential equations with locally Lipschitz coefficients

This paper investigates a non-autonomous slow–fast system, which is generalized by stochastic differential equations with locally Lipschitz coefficients, subjected to standard Brownian motion and fractional Brownian motion with Hurst parameter 1/2<H<1. The pathwise approach and the Itô stochastic calculus are combined with the technique of stopping time to establish the averaging principle. Then, we conclude that the slow component of the original slow–fast system converges to the solution of the proposed averaged equation in the mean square sense.