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. (2025). Uzbekistan Journal of Mathematics and Computer Science , 1(1), 20-32. https://doi.org/10.56143/ujmcs.v1i1.7