The Liénard system is a type of dynamical system used in the study of differential equations. It is characterized by a second-order ordinary differential equation that can describe oscillatory behavior. The system typically takes the form of a nonlinear equation, which allows for the analysis of various types of motion, including stable and unstable equilibria. In the context of mathematical physics and engineering, the Liénard system is often applied to model phenomena such as electrical circuits and mechanical systems. Its solutions can provide insights into the stability and periodicity of oscillations, making it a valuable tool for researchers in these fields.