2025. On a $(\omega ,c)-$periodic solution for an impulsive system of second-order differential equation with product of two nonlinear functions and mixed maxima: On a $(\omega ,c)-$periodic solution for an impulsive system of second-order differential equation. Uzbekistan Journal of Mathematics and Computer Science . 1, 1 (May 2025), 20–32. DOI:https://doi.org/10.56143/ujmcs.v1i1.7.