Boundary Value Problems for Liénard-Type Equations with Quadratic Dependence on the “Velocity”

<div>The phase portrait of system (<a href="https://static.hindawi.com/articles/aaa/volume-2022/9228511/figures/#EEq14">24</a>).</div>

Abstract and Applied Analysis

Figure 3: Boundary Value Problems for Liénard-Type Equations with Quadratic Dependence on the “Velocity” 